HomeMy WebLinkAboutReg 2008-03-03 Item 7H - Ordinance - Townhouse Zoning and Subdivision Code Amendments COUNCIL AGENDA SYNOPSIS
L,�.
w
k :r �``.S%' Initials ITEM No.
r
OI
I Pk G Meeting Date Prepared by j Mayor's review I Council review
02/11/08 JP 1
4 03/03/08 I JP 1 1/ j
r9o$ 1 1 1 t i h
1 1 1 1
ITEM= IN FORMATION_
CAS NUMBER: 08-017 I ORIGINAL AGENDA DATE: FEBRUARY 11, 2008
AGENDA ITEM TITLE Townhouse Zoning and Subdivision Code Amendments.
CATEGORY Discussion Motion Resolution Ordinance Bid Award Public Hearing Other
Mtg Date 2/11/08 Mtg Date Mtg Date Mtg Date 03/03/08 Mtg Date MLltg Date 02 /11 /08 Mtg Date
SPONSOR Council Mayor Adm Svcs DCD Finance Fir-e Legal P &R Police Pl/
SPONSOR'S The proposal is to amend the zoning and subdivision codes to allow for development of
SUMMARY zero -lot line townhomes in MDR and HDR zones.
REVIEWED BY COW Mt CA &P Cmte F &S Cmte Transportation Cmte
Utilities Cmte Arts Comm. Parks Comm. Planning Comm.
DATE: 1 -28 -08 (CAP), 6- 28 -07, 11 -08- 07,12 -13 -07 (PC)
RECOMMENDATIONS:
SPONSOR /ADMLN. Hold the public hearing on the proposed draft ordinance.
CoMMrl I LE Unanimous Approval; Forward to Committee of the Whole
COS-TIMPACT= /FUND SOURCE
EXPENDITURE REQUIRED AMOUNT BUDGETED APPROPRLATION REQUIRED
Fund Source: N/A
Comments:
MTG DATE RECORD OF-COUNCII ACTION=
02/11/08 I Forward to 3/3/08 Regular Meeting
1
1
MTG.= DATE ATTACHMENTS
02/11/08 Information memo dated 02 -01 -08 with attachments, to include draft Ordinance
Minutes from Community Affairs and Parks Committee meeting of 01- 28 -08.
03/03/08 1 Informational Memorandum dated 2/27/08
1 Townhouse Design Guidelines
Ordinance in Final Form 1
1
INFORMATION MEMORANDUM
To: Mayor- Haggerton
Tukwila City Council
FROM: Jack Pace, DCD Direct
DATE: February 27, 2008
SUBJECT: Townhouse Zoning and Subdivision Code Amendments
ISSUE
Should the Zoning and Subdivision Codes be changed to allow for development of zero -lot
line /fee simple townhomes on individual lots?
BACKGROUND
After holding the public hearing on February 11, 2008, the City Council asked staff to
make the following changes to the draft ordinance and the Townhouse Design Guidelines:
1. Add a "whereas" clause stating that Council wishes to get a report after three
townhouses are built to evaluate if any additional changes need to be made.
2. Clarify that setbacks can be counted towards recreation space requirements only
for townhouses. Section 18 of the ordinance has been amended to reflect this
change.
3. Require low impact development techniques for allowing development
coverage to increase from 50% to 75 This requirement shall be discretionary
approval by the Director provided the site allows low impact development
techniques and the drainage design meets all adopted codes. Section 17 of the
ordinance has been amended to reflect this change.
4. Replace the word "should" with "shall" in paragraph 1 on page 1 of the
Townhouse Design Guidelines.
5. Reformat page 10 of the Townhouse Design Guidelines so that the headings "do
this" and "not this" are adjacent to the appropriate photo.
6. Add language stating "Flat roofs shall be discouraged" on page 12 of the
Townhouse Design Guidelines.
The attached ordinance and Townhouse Design Guidelines reflect these changes
discussed above.
RECOMMENDATION
Adopt the Ordinance and Townhouse Design Guidelines.
MD Page 1 02 -27 -2008
Q: \To i homeslCOW- 03 -03 -08 Townhouse.DOC
TOWNHOUSE DESIGN GUIDELINES
I. SITE PLANNING
Streetscape The transition from public to private spaces
A. The transition from a pedestrian oriented streetscape to multi -story buildings shall emphasize
pedestrian scale architectural elements such as porches, plantings of varying heights, and use
pedestrian oriented entries, courts, and lighting. It is possible to make the transition to the site,
building and individual unit in many different physical ways. For example, a sidewalk could lead
through a gate to a private yard and then to a porch before reaching the front door of the
townhouse. The most successful solution will consist of a combination of the above suggested
symbolic definers or other comparable mechanisms.
—Berms landscaping and architcctiv, form a gateway.
\i p
1
t \wk
2 °I.
i 1 ii ..#,W. el 1
l it s
.7., ,,,,,i 1 ":7 i l
v_ii
I win nit
A.
P
v.
11 /4'
I
Special Pavers and entry sign.
Fig. 1: Project entry provides an immediate sense of high quality design.
Q \Townhomes\MFamilyDesGuide.doc 1 March 3, 2007
B. Provide a clearly defined building or cou rtyard entry from the primary street.
1. Use distinctive architectural elements and materials to indicate the entry such as a change
in paving material, low wall, steps, trellis, or arbor.
2. Define the transition space from the sidewalk to the entry with a terrace, plaza, or
landscaped area.
3. Consider turning the end unit (or pair of units) to face the public street, see Figure 20.
Natural Environment Retain natural site amenities
C. Incorporate existing healthy and attractive vegetation into project design by loc buildin
to maximize significant tree retention on slopes, retain tree stands, and minimize disturbance of
sensitive areas. Retaining large stature trees and tree stands on site very significantly improves
the integration of new developments into Tukwila's mature neighborhoods.
v
t
Fig. 2: Site buildings and roads to retain mature trees.
Q:\ Townhomes \IviF'amilyDesGuide.doc 2 March 3. 2007
D. Landform grading should be used when feasible to reflect the natural topography and retain
mature trees.
J Building Building
Slope
--C
STREET 1
------..71
Landform Site Planning
/i
Building Building B-nHding 'Building
l 4 i l 4 I li 11 I I it 1/4 s% ft 00 kl 41 i
r
a ,_11 1 4 1 Mi a lit C V
STREET tA
it
Conventional Site Planning ``-�l
Fig. 3: Comparison of conventional and landform site grading.
E. Site coverage on slopes should be minimized to reduce visual impact. Site coverage
limitations are not as significant on flat sites where lower buildings may be preferable to
maximize architectural harmony with nearby structures and the streetscape.
F. Site design should be integrated with the neighborhood. Project design integration should
include coordination of circulation, landscaping, recreation spaces, and building location with the
surrounding area. A visual distinction using landfoun, landscaping, or materials may separate a
project from the general neighborhood. However, high "fortress" walls should be avoided and
buildings should not turn their backs to the street.
Q \Townhomes \MFamilyDesGuide.doc 3 March 3, 2007
Circulation Pedestrian
G. A comprehensive system of pedestrian sidewalks should link all building/unit entries, parking
lots, recreation areas and the project entries with the area -wide sidewalk system.
H. Sidewalks should be a minimum of six feet wide between public roadway and the junction
where pedestrian traffic begins to disperse. This would allow one pedestrian to pass another and
remain on the sidewalk. A minimum four foot wide sidewalk may then be acceptable.
I. Sidewalk crossings of on -site roadways should be distinguished by a different material and
slightly raised to prevent runoff from flowing across them.
Building g entry arra
i
(6..ci
M
t
Contrasting material marks pedestrian
crossings.
Fig. 4: Key sidewalk intersections and segments are marked with contrasting pavers.
J. Buildings should be separated at least 8 feet from driveways and parking spaces where facing
windowed walls (but not the entry) of ground units and have a minimum 13 foot separation when
facing the entry of ground units.
K. Separate buildings from common walkways by at least 8 feet in the structure's front and rear,
and a minimum 4 feet on its side.
L. Separation guidelines do not apply to incidental structures such as trellises, 18 inch roof
eaves, chimneys, covered walks, and pedestrian oriented amenities.
Q \Townhomes\MFamilyDesGuide.doc 4 March 3, 2007
Circulation Vehicular
M. Design the on -site vehicle circulation system as follows:
A maximum of two vehicle access points, depending on parcel characteristics and
difficulty of access, to reduce traffic impacts and the site area devoted to roads instead of
architecture and landscape /recreation space,
Create very low volume cul -de -sacs to allow multiple use as street oriented
social/recreation areas, and
Stress shared driveways between adjacent developments.
Parking
N. Locate parking to minimize conflicts between autos and pedestrians. Driveways should avoid
crossing pedestrian walkways and paths from residence to children's play area. In large parking
lots, provide pedestrian walkways to allowing people to move safely. Additional space should be
provided where cars overhang curbs.
0. Separate driveway parking areas with landscape islands to create an individual unit entry and
reduce the appearance of large areas of paving.
a -7
'44_
4
t r o.,...._
is. r
t y i +ice
s�`
Fig. 5: Separation of driveways w landscape islands.
P. Provide the majority of the required parking spaces in attached garages (tandem parking
allowed), underground parking, and underbuilding parking when grades permit at least partial
screening.
Q. Minimize the prominence of surface parking by using architecture and landscaping to break
up or screen parking areas, moving parking to the side or rear, and breaking up large parking
areas into smaller ones.
Q \Townhomes \MFamilyDesGuide.doc 5 March 3, 2007
f
T- i
i 13 i x i.
4-' -d
����YYYY t i1
a ct.41- "-L-4-: 1 --c- 7, 1---
f l,
1
n
t
Fig. 6: Parking located so that it is screened by buildings.
R. Supplemental parking areas should be located within 200 feet of the farthest dwelling unit
served for the convenience of residents.
S. The optimum design for a parking area is not necessarily the one which parks the maximum
number of vehicles, but the one that also provides ample stall and aisle widths, pedestrian walks,
adequate turning radii, reasonable grades, efficient movement of traffic, pleasant appearance, and
convenient location.
T. Four to six space parking lots are pedestrian and human in character, while over twelve cars
become car dominated. The critical number seems to be ten. This marks the breaking point
between a human lot and a sea of cars. Small lots can be accomplished by breaking large parking
areas into sections that serve no more than 10 to 12 cars. Landscape islands and areas should be
located to protect cars as well as to break up seas of asphalt.
Solar Orientation
U. To maximize the warming effect of solar radiation in winter months and maximize shade in
the summer months:
1. Utilize deciduous trees for summer shade and winter sun
2. Orient active living spaces to the south.
3. Design building overhangs to shield the high summer sun and expose the area to the
lower winter sun.
Q \Townhomes \MFamilyDesGuide.doc 6 March 3, 2007
Crime Prevention
V. Employ the Concept of Defensible Space to reduce opportunities for crime. "Defensible
space" is a teen used to describe a series of physical design characteristics that maximizes
resident control of behavior particularly crime. A residential development designed under
defensible space guidelines clearly defines all areas as either public, semi private or private. In
so doing, it determines who has the right to be in each space, and allows residents to be confident
in responding to any questionable activity or persons within their complex. Residents are thus
encouraged to extend their private realms, establish their zone of influence which inevitably
results in a heightened sense of responsibility towards the care and maintenance of these outdoor
areas.
W. The following series of techniques can be used to create defensible space and consequently
reduce crime. They are summarized in:
Defining zones of privacy (public, semi private, private) with real or symbolic barriers.
This allows residents to identify "strangers
Establishing perceived zones of influence (allowing residents to extend their private
realms).
Providing surveillance opportunities.
Additional design considerations include the following:
Orient windows so that areas vulnerable to crime can be easily surveyed by residents.
Locate mailboxes, garbage collection enclosures and common play areas in such a way
that they are easily observed by others. Mailboxes should not be located in dark alcoves
out of sight
Establish a system for identifying the location of each residential unit and common
facilities at the project entry.
Lighting. More light is not necessarily indicative of better and safer lighting. Lighting
levels should be carefully selected and oriented so that areas vulnerable to crime are
accented. Provide lighting in areas of heavy pedestrian or vehicular traffic and in areas
which are dangerous if unlit, such as stairs and ramps, intersections or where abrupt
changes in grade occur. Areas that have high crime potential should be well lighted so
that people traveling through them at night may feel secure.
Locate plant materials such as high shrubs so that surveillance of semi- public and semi-
private areas is not blocked. This will provide the opportunity for crime.
Use visually open fencing materials such as wrought iron bars or wooden pickets to
define space between the street and building.
X. Sticker shrubs may discourage crime activities. Low shrubs and umbrella trees (where the
canopy is maintained above 5 feet from the ground) will allow surveillance opportunities, hence
reducing the potential for criminal behavior.
Q: \Townhomes\MFamilyDesGuide.doc 7 March 3, 2007
II. BUILDING DESIGN
Neighborhood Compatibility
A. Minimize the appearance of building scale differences between proposed townhouses and
existing neighborhood residential units that conform to current zoning. Portions of multi family
developments adjoining areas zoned for single family should maintain a scale, facade and
orientation similar to single family uses for compatibility with existing structures. A project site
plan and cross sections should show the footprint of all adjacent structures within 100 feet of the
property line to help evaluate compatibility.
E
5 g i 1 1 .4%1W -1-1-117-
r:L.--.711-^ 7%._\ 1=7:
t
t rid H i 1._____:
I E
Fig. 7: Incorporation of elements from neighboring structures into townhouse design.
B. Reflect the architectural character of neighboring residences (within 300' on the same street)
where it provides a positive example through use of related building features including
scale /mass, height, the proportions of entries, windows and other openings (fenestration), color,
materials, and shapes.
1. Step the roof on the building perimeter segments to transition between a proposed taller
building and an existing residential structure.
2. Replicate or approximate roof forms and pitch found on existing residential structures in
the neighborhood.
3. Use window patterns and proportions similar to those on existing residential structures in
the neighborhood.
4. Use building facade materials similar to those used on existing residential buildings in the
neighborhood.
5. Maintain a consistent relationship to the street (i.e., building setbacks and entryways) as
existing buildings.
Q \Townhomes\MFamilyDesGuide.doc 8 March 3, 2007
Offsets, changes in materials. and
other fine detailing are used to provide
architectural interest.
Pitched roofs, bl!ilding modulation
x mzunate CRAMS ourodocc a single family
scale to this dame building
-P--
i
1 --r.---
----e--=',--'?!._
ITT/
4 arellised awry pr
1 ovides saucnual
1 I L.--.-
i I 1 i I ii--_:---___: transition from pedestricm environment to
building ow& and helps separate public
from sena-privare project spaces.
Lh:
tit 4 i lAi.
r 4 1
7- 15::-- 7 IL
r ,a. __h
4) -2;kij----i m 1. 1 .:4 :::.k r i, 74 1
1 1 Vii .'.,*'.410r4 4 1 4 iq•
.4, It 0 iy i 4-- ,2:_, .A,U,Itr q ft 1 N N,,
..!---2.1,e,s41-V,./p-ri•MI-1 i it 1- 1 l_e_v
W'jr t„fi• i!ri ,fkA i ---..iNir it 0-,,,Iti‘i k 1 1
th' "I ■•-r ik ri -f4-1 1 t1 47 ..i.-i19-;+: 1 jj I ol' It,- 4-
v,,,, 5 v.;),,,-,,w,,-_-_• i* t- I t '0Viii:gritlif i" A 1 i "m", 1)
vr, c 2 v,--;.: i ,f 0,1_4110 11112 Paii7JAN c,. t i ..q j
i II' i ..tif i I 1 1"1".-4 :113%`: i:1 4 it' 11Firr 1 ti "k c il I
r 1,- --IN ---",e.,--___;_
•-•:e''
i i
1 f'4- 4
T 4-
111
It
1 I 1 I ii-
-.„„-,,--_----.AEi,_p„-_.:;:..v_-
I A ti v ii-::-
_____0 gay,'
-e:,-___. .--4,-,
Fig. 8: Detailing and modulation are used to reduce the scale of the building.
Q:\Townhomes\MFamilyDesGuide.doc March 3, 2007
Building Entrances
C. Avoid the use of exterior stairways to second stories that are visible from the street.
Do this:
Driveway
entrance to
auto court
y
r
a v
I
c� i ��i f x •i 3
3 ra 1r r i a
t om ---f r' L 3 r }t •4
Site Plan:
�31< �j S SS r i' X j i
a a -I..1-:":, a
1
e 4* r'� y, may
,Aii
I i t
a 4111 i I i 1, F i e
f
3 4'
f rik„.&-,.k_ re iir 7",-"..::_k-A-i tzi i= ti -1,,ii t
i I F I. i _____=5, :";t c c _f_ _i 1 1 1 3 7 rj u
t
fr t
Not this
Fig. 9: Relationship of entry to street level.
Q \Townhomes'MFamilyDesGuide.doc 10 March 3 2007
D. Townhouse units shall have an individual entrance, with entrance vestibules, canopies or
porches to give identity to each unit and provide weather protection. The main entrance to units
adjacent to a public street shall be accessed from and face the street.
ry i
j ;-sue
r
3
N 3
a
Fig. 10 Individual entry porch.
Building Elevations
E. Attached townhouses shall read as a unified building mass, maintaining a common
architectural language across the entire length of units. This mass shall be varied by changes in
unit orientation, color /material variations, shifts in roof profile, and variation at comer units.
Windows, bays, balconies, and other articulation could also be used to express the individuality
of each unit.
F. Each building shall incorporate treatments that "complete" the end and corner units, including:
1. an extended base or ground floor units
2. a protrusion, porch or bay that wraps the corner, or
3. an embedded comer tower
7
e
1.-- 'f
..1,;/: ..atr'tr -77 q i Ai F A/A :FY.,
i ms' ,b 5
I
1-- f:t 6 '1 1 "4 -;.-1 __?It r
Fig. 11: Expressing individual units through modulation and roof forms.
Q \Townhomes\MFamilyDesGuide.doc 11 March 3, 2007
G. A 3 -story blank wall, even if at the narrow end of a building, does not reflect acceptable
design quality. Use architectural relief and fine detailing to break up monotonous surfaces.
H. Avoid applied ornamentation which is not related to building structure or architectural design.
This would include arbitrary, inconsistent fauns and decoration; uninterrupted floating
horizontal elements; and large blank surfaces.
Windows
I. Provide relief, detail, and visual rhythm on the facade with well- proportioned windows.
1. Use window patterns, proportions, and orientation consistent with neighboring
residences.
2. Use multiple -pane windows.
3. Provide windows that are designed to create shadows (either deeply recessed or
protruding).
4. Use visually significant window elements (i.e. frame dimensions, lintels, casings, sills,
and trim.
5. Locate windows so that the occupants from one residence cannot look directly into an
adjacent residence.
v-
Fig. 12: Window form examples.
Roofline
J. Vary the roofline along the building length to reflect individual units. This can be achieved
using:
separate roof foilns
a combination of roof types, such as shed, gabled and hipped roofs)
gables and dormers
K. Pitched and continuous sloping roof folins are encouraged. Flat roofs shall be discouraged.
Where flat roofs are used, they should be detailed with parapets or roof overhangs, and detailed
with brackets, corbels or other decorative supports.
Q \Townhomes\MFamilyDesGuide.doc 12 March 3, 2007
`ice -t
.x.fr4 gg ilex ______,_.,„_______r_._:::.f_ic.::_Ir_ri
____,_,__.c_.,,_____,„„i„,_.„7„,„....,„:„..„,„.„.7.___1‘„...=„_...,.,._,_,__...._:.,
Fig. 13: Roof form variation.
Building Massing
L. More prominent sites and buildings require a higher level of desi quality. Thi w ould
include projects which are located near hill top or intersections, or which include lar visible
building masses.
M. Use building and roof modulation and articulation to reduce the appearance of large building
masses.
1. Modulate the building facade with features such as porches, balconies, building wall
relief, and bay windows.
2. Provide roof elements such as gables, eyebrow roof forms or dormers.
3. Incorporate prominent cornice, so ffit, or f ascia detai that em phasize t he top of the
building.
4. Provide prominent roof overhangs.
5. Articulate the roof with rafter tails and brackets.
1 tub®
II r1
4 f iI
Fig. 14: Differentiation of individual units through building and roof modulation to reduce the
appearance of large building masses.
Q \Townhomes'MFamilyDesGuide.doc 13 March 3, 2007
Material and Colors
N. Construct building exteriors of durable and maintainable materials that are attractive even
when viewed up close. Use building materials that have texture, pattern, or lend themselves to a
high quality of detailing. Appropriate materials are horizontal lap siding, shingles, brick, stone,
stucco, ceramic or terra cotta tile.
0. Use a variety of complementary colors on building exteriors. Reserve brightly saturated
colors for accent or trim features.
Garage Design
P. Design garages and carports so that they do not dominate the dwelling's facade.
1. Locate garages and carports behind residences, stepped back from the building's street
facade, or provide a side entry (perpendicular to the street).
2. Design driveways to be as narrow as possible and/or shared where possible to
minimize impervious surface and to minimize disruption of the sidewalk and planting
strip by curb cuts.
3. Incorporate windows into garage sidewalls whenever they face the street so that they
appear to contain habitable space.
4. Incorporate garage door elements which reduce the apparent size of the doors, such as
panels and windows.
5. Use materials and colors that match the residence.
H
i
k
t
fr ovio 14, J,L;
Fig. 15: Side entry garage with windows.
Q \Townhomes\MFamilyDesGuide.doc 14 March 3, 2007
III. LANDSCAPE /SITE TREATMENT
Landscape Design
A. Plants can be used to curtail erosion, to soften the built environment, define or emphasize
open space, give privacy, block wind and lessen the effects of solar radiation.
B. Although the landscape plan should reflect plants at maturity, landscaping should be
considered as a design element harmonizing site plans and building design only to the extent of
its effect in five years. This could mean using significantly larger initial plant stock for those
project designs which rely heavily upon landscaping to provide relief for building and site design
or screen the project.
C. Select and site landscape materials to produce a hardy and drought- resistant landscape area
consistent with project design. Selection should include consideration of soil type and depth,
spacing, exposure to sun and wind, slope and contours of the site, building walls and overhangs,
and compatibility of new plant material with existing vegetation to be preserved on the site.
D. Install all plant materials to current nursery industry standards. Landscape plant material
should be properly guyed and staked to current industry standards. Planting of trees in
compacted soils is prohibited unless minimum 12 inch gravel drain sumps are installed under
each tree to a minimum of 36 inch depth, or the subgrade soil beyond the planting pit is rototilled
to a 9 inch depth to the drip line or edge of planter, whichever is less.
E. Plant shrubs used to define spaces or separate environments as a staggered double row
whenever possible. This provides the significant depth especially necessary to separate
environments such as parking areas from grassed fields and building entries.
F. Limit shrub beds to a maximum of two feet wide per typical row of nursery stock plants, in
order to minimize barked area and maximize live ground cover. A typical five foot wide barked
planting bed for a single row of shrubs is not acceptable.
Protection of Existing Trees
G. The survival and general health of a tree depends as much on the condition of its root system
as it does 011 the factors influencing the above -ground portion. This vital root system extends out
to, and sometimes beyond the tree's drip line (the outermost reach of branches). Any significant
disturbance to the root area, such as high surface compaction, root severing, over watering
and/or removal of organic material in which the tree has composted over several years, will
almost certainly kill the tree. Tree removal and replacement would be required after a few
seasons of progressive deterioration.
H. Protect significant trees during construction with a chain -link fence or plastic vinyl
construction fence at the drip line. Install the protection fence prior to issuance of grading permit.
Removal or destruction of fencing should be cause for a Stop Work Order until reviewed by City
staff.
Q \Townhomes\MFamilyDesGuide.doc 15 March 3, 2007
t f II,
It
--1 .1 \V f rfr 1 70
'h i l O
N I li.z i t,
i
DRIPLINE. 1
i
i
FENCE LINE'.
Fig. 16: Tree protected with a chain link fence at the drip line during construction.
Design for Screening and Separation
I. Full privacy requires an opaque fence or evergreen barrier at least six feet high or above eye
level, depending on the angle of view. Noise reduction requires a dense fence (i.e.,
concrete /masonry) wall or berm in addition to plantings.
J. Area separation requires a continuous physical barrier not less than three feet high. A greater
degree of separation would require a higher opaque barrier. A separation planting strip could be
deciduous or evergreen.
K. Provide a privacy fence along side and rear yards if adjoining single family zoning. This
should be 6 feet high sight- obscuring wood (or equivalent) fence with exterior materials and
colors consistent with building architecture.
Outdoor Space Design
L. Outdoor space tends to be unusable when it is simply the "leftovers" after buildings are placed
on the land. Outdoor spaces should have a definite functional shape, be internally designed to
fulfill that function, and be functionally associated with a specific unit or unit group (see
"Defensible Space" in Site Plan guidelines).
M. Complexes with 10 or more units must provide an on -site recreation space for children with
at least one area designed for children aged 5 -12, see TMC 18.52.060. This area should be
characterized by interactive group equipment which tests skills. The Parks and Recreation
Director should be consulted in the review of acceptable design proposals.
N. The child play area should reflect the design elements below:
1. Visually accessible to casual surveillance by passersby and residents. This is a key
element in facility safety and generally requires a central location.
Q \Townhomes\MFamilyDesGuide.doc 16 March 3, 2007
2. Provide separation of play areas from general passersby for security.
3. Easy safe access from residence to play area(s)
4. Hard surface areas for wheeled toys and tricycles.
5. Equipment with zones to satisfy the specific sensory and skill needs up to age 12.
6. Use water and sand if limited to two materials. These provide more possibilities for play
and fun than all asphalt deserts combined. The ability to move over, under, around or
through something.affords a child control. He can change his relationship to it.
7. A child should be able to control his level of involvement with others. Make small
sheltered areas for solitary play, larger spaces .for group play.
8. An adjacent sitting area for monitoring the children.
f
qY L
till VVV 1 x^/4-
i
fly -_y r� i s-
A 1 I r
Z i t oli i;t
fir i f '5....! ra
F.7.,111_,..._ l 1
Fig. 17: A recreation space for the 5 -12 year old group which facilitates group interaction
and skill testing.
O. Linkages with existing public trail and park facilities should be made where possible, either
through immediate construction or agreement to jointly participate in the coordinated provision
of such a linkage at a later date.
IV. MISCELLANEOUS STRUCTURES /STREET FURNITURE
Lighting
A. Reflect project architectural design considerations in all exterior lighting (i.e., distribution,
intensity, and pattern).
B. Maximum parking area light standard height is 20 feet or the height of the building;
whichever is less.
Q \Townhomes\MFamilyDesGuide.doc 17 March 3, 2007
EEI
r x
Fig. 18: Parking lot lighting.
C. Maximum walkway and grounds lighting is 15 feet. Light fixture height is limited to enhance
a sense of scale and enclosure for common areas at night.
D. Provide all lighting standards with glare cut -off features to avoid off -site spill -over.
E. Place fixtures so that light patterns overlap at a height of 7 feet which is sufficiently high to
vertically illuminate a person's body.
F. At hazardous locations, such as changes of grade, use lower level supplemental lighting or
additional overhead units. Where low -level lighting (below 5 feet) is used, fixtures should be
placed in such a way that they do not produce glare. Most eye levels occur between 3 feet 8
inches for wheelchair users and 6 feet for standing adults.
G. Where walkway lighting is provided primarily by low fixtures provide sufficient peripheral
lighting to illuminate the immediate surroundings. Peripheral lighting contributes to a feeling of
security in an individual because he can see into his surroundings to determine whether or not
passage through an area is safe. Such an area should be lighted so that the object or person may
be seen directly or in silhouette.
Fencing, Walls, and Screening
H. All fencing, walls, and screening should reflect building architecture and be harmonious with
adjacent project designs. This includes consideration of proportion, color, texture, and materials.
Design perimeter fencing to be attractive from both sides.
Service Areas
I. Screen all exterior maintenance equipment, including HVAC equipment, electrical equipment,
storage tanks, satellite dishes, and garbage dumpsters from off -site and on -site common area
view in an architecturally integrated manner.
Q \Townhomes\MFamilyDesGuide.doc 18 March 3, 2007
01:1‘..(1,. 41; f
i t
t
L7 li V 1P Z 2 4
�v s
s
f
Fig. 19: Dumpsters are sited and screened to minimize prominence.
J. Several small dumpsters adjacent to buildings such as garages are preferable to a single large
free standing site. Dumpsters should have solid architectural wall screening only to the container
height to minimize its prominence.
Y
1 if�in i,ujrn 1 57 l.
_4, Pinup
I�i Urea
1 z
Elli Li' I q s i
'CSC? i
te —t--
Garbage pickup area for now development
Fig. 20: Garbage collection area screened from public street.
K. Recycling containers and areas should conform to King County standards or as amended by
Tukwila standards.
Street Furniture
L. Carry out the project's design concept with the choice of street furniture.
M. Foster opportunities for social gathering by residents in shared open spaces by the provision
of seating and other amenities. Separate vehicular traffic from pedestrian oriented areas with the
use of bollards and other barrier features.
Q \Townhomes \MFamilyDesGuide.doc 19 March 3, 2007
19�
City of Tukwil
Washington
Ordinance No.
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF TUKWILA,
WASHINGTON, AMENDING TUKWILA MUNICIPAL CODE 1'1'1'LE 17,
"SUBDIVISION CODE," AND 1'1'1'LE 18, "ZONING CODE," TO ALLOW
DEVELOPMENT OF ZERO- LOT -LINE FEE- SIMPLE TOWNHOUSES ON
INDIVIDUAL LOTS; PROVIDING FOR SEVERABILITY; AND
ESTABLISHING AN EFFECTIVE DATE.
WHEREAS, the City of Tukwila's Zoning and Subdivision Codes do not
specifically list zero-lot -line townhouses as a permitted use, and the development
standards in the multi- family zones are not conducive to a townhouse type of
development; and
WHEREAS, the City Council wishes to allow attached and detached zero -lot -line
townhouses as another type of ownership housing in Tukwila's multi- family zones; and
WHEREAS, the City Council wishes to expand the choices for development in the
multi- family zones, from condominiums and apartments to attached and detached
zero-lot -line townhouses; and
WHEREAS, after three townhouse projects are built under the regulations
established by this ordinance, the City Council wishes staff to prepare a report, to
evaluate the quality of development; to determine if any additional changes are
necessary; and whether to continue to allow townhouses in the multi- family zones; and
WHEREAS, on June 28, 2007, November 8, 2007, and December 13, 2007, the
Tukwila Planning Commission, following adequate public notice, held public hearings
to receive testimony concerning amendments of the Zoning Code and Subdivision Code
to allow townhouses, and, on December 13, 2007, adopted a motion recommending the
proposed changes; and
WHEREAS, on February 11, 2007, the Tukwila City Council, following adequate
public notice, held a public hearing to receive testimony concerning the
recommendations of the Planning Commission;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF TUKWILA,
WASHINGTON, HEREBY ORDAINS AS FOLLOWS:
Section 1. Ordinance 1833 §1 (part), as codified at TMC 17.12.010, is hereby
amended to read as follows:
17.12.010 Scope
Any Iand being divided into nine or fewer parcels, lots, unit lots, tracts or sites for
the purpose of sale, lease, or gift, any one of which is less than 20 acres in size, shall
meet the requirements of this chapter.
Section 2. New regulations regarding Unit Lot Subdivisions are hereby added to
TMC Chapter 17.12, "Detailed Procedures for Short Subdivisions," to read as follows:
17.12.070 Unit lot short plats
A. Sites developed or proposed to be developed with townhouses, cottage
housing, compact single family, or zero-lot -line units may be subdivided into
individual unit lots. The development as a whole shall meet development standards
applicable at the time the permit application is vested. Any private, usable open space
C:\Documents and Settings\All Users\ Desktop \Kelly1MSDATA Ordinances \Zero Lot Line Zoning.doc
MD:ksn 2J28rz008 Page 1 of 13
for each dwelling unit shall be provided on the same lot as the dwelling unit that it
serves.
B. Subsequent platting actions, additions or modifications to the structure(s) may
not create or increase any nonconformity of the parent lot.
C. Access easements and joint use and maintenance agreements shall be executed
for use of common garage or parking areas, common open space (such as common play
areas), and other similar features, as recorded with the King County Department of
Records and Elections.
D. Within the parent lot, required parking for a dwelling unit may be provided on
a different unit lot than the lot with the dwelling unit, as long as the right to use that
parking is formalized by an easement on the plat, as recorded with the King County
Department of Records and Elections.
E. The fact that the unit lot is not a separate buildable lot, and that additional
development of the individual unit lots may be limited as a result of the application of
development standards to the parent lot, shall be noted on the plat, as recorded with the
Director of the King County Department of Records and Elections.
F. Construction of townhouse dwelling foundations may commence prior to final
short plat approval, provided:
1. The proposed short plat has received preliminary approval, and the
necessary financial sureties have been filed to assure construction of required public
improvements;
2. Partial or complete construction of structures shall not relieve the
subdivider from, nor impair City enforcement of, conditions of subdivision approval;
3. Construction shall not proceed beyond foundations, and units shall not be
rented or sold, nor occupancy permits issued, until final short plat approval is granted.
Section 3. Ordinance 1833 §1 (part), as codified at TMC 17.14.010, is hereby
amended to read as follows:
17.14.010 Scope
Any land being divided into ten or more parcels, lots, unit lots, tracts or sites, for
the purpose of sale or gift, any one of which is less than 20 acres in size, or any land
which has been divided under the short subdivision procedures within five years and is
not eligible for further short platting, pursuant to Section 17.12.010, shall conform to the
procedures and requirements of this chapter.
Section 4. New regulations regarding unit lot subdivisions are hereby added to
TMC Chapter 17.14, "Detailed Procedures for Subdivisions," to read as follows:
17.14.060 Unit lot subdivisions
A. Sites developed or proposed to be developed with townhouses, cottage
housing, compact single family, or zero lot -line units may be subdivided into
individual unit lots. The development as a whole shall meet development standards
applicable at the time the permit application is vested. Any private, usable open space
for each dwelling unit shall be provided on the same lot as the dwelling unit it serves.
B. Subsequent platting actions, additions or modifications to the structure(s) may
not create or increase any nonconformity of the parent lot.
C. Access easements and joint use and maintenance agreements shall be executed
for use of common garage or parking areas, common open space (such as common play
areas), and other similar features, as recorded with the King County Department of
Records and Elections.
D. Within the parent lot, required parking for a dwelling unit may be provided on
a different unit lot than the lot with the dwelling unit, as long as the right to use that
parking is formalized by an easement on the plat, as recorded with the King County
Department of Records and Elections.
C:\Documents and Settines \AIl Users Desktop \Kelly'MSDATA \Ordinances\Zere Lot Line Zoning dos
MD:ksn 2/282008 Page 2 of 13
E. The fact that the unit lot is not a separate buildable lot, and that additional
development of the individual unit lots may be limited as a result of the application of
development standards to the parent lot, shall be noted on the plat, as recorded with the
Director of the King County Department of Records and Elections.
F. Construction of townhouse dwelling foundations may commence prior to final
plat approval, provided:
1. The proposed plat has received preliminary approval, and the necessary
financial sureties have been filed to assure construction of required public
improvements;
2. Partial or complete construction of structures shall not relieve the subdivider
from, nor impair City enforcement of conditions of, subdivision approval;
3. Construction shall not proceed beyond foundations, and units shall not be
rented or sold, nor occupancy permits issued, until final plat approval is granted.
Section 5. A new definition for "Detached Zero Lot -Line Units" is hereby added to
TMC Chapter 18.06, "Definitions," to read as follows:
Detached Zero Lot Line Units
A development pattern of detached dwelling units constructed immediately
adjacent to one side lot line (i.e. no side yard setback), coupled with an easement on the
adjacent lot in order to maintain separation between structures. The easement will
provide access rights for maintenance purposes, and help preserve privacy and usable
yard space.
Section 6. A new definition for "Lot, Parent" is hereby added to TMC Chapter
18.06, "Definitions," to read as follows:
Lot, Parent
"Lot, parent" means the initial lot from which unit lots are subdivided for the
exclusive use of townhouses, cottage housing, compact single family, zero lot -line units,
or any combination of the above types of residential development.
Section 7. A new definition for "Lot, Unit" is hereby added to TIvIC Chapter 18.06,
"Definitions," to read as follows:
Lot, Unit
"Lot, unit" means one of the individual lots created from the subdivision of a parent
lot for the exclusive use of townhouses, cottage housing, compact single family, zero -lot-
line units, or any combination of the above types of residential development.
Section 8. A new definition for "Townhouse" is hereby added to TMC Chapter
18.06, "Definitions," to read as follows:
Townhouse
"Townhouse" means a form of ground- related housing in which individual
dwelling units are attached along at least one common wall to at least one other
dwelling unit. Each dwelling unit occupies space from the ground to the roof and has
direct access to private open space. No portion of a unit may occupy space above or
below another unit, except that townhouse units may be constructed over a common
shared parking garage, provided the garage is underground.
Section 9. Ordinance 1834 §2 (part), as codified at TMC 18.06.768, is hereby
amended to read as follows:
18.06.768 Short Subdivision
"Short subdivision" means the division of land into nine or less lots, unit lots,
tracts, parcels, sites or divisions.
Section 10. Ordinance 1834 §2 (part), as codified at TMC 18.06.813, is hereby
amended to read as follows:
C \Documents and Seuings\All Users\Desktop\Kelly\MSDATA \Ordinances Zero Lot Line Zonino.doc
MD:ksn 2n8rz008 Page 3 of 13
18.06.813 Subdivision
"Subdivision" means the division or redivision of land into ten or more lots, unit
lots, tracts, parcels, sites or divisions.
Section 11. Ordinance Nos. 1976 §20, 1865 §9, and 1758 §1 (part), as codified at
TMC 18.12.020, are hereby amended to read as follows:
18.12.020 Permitted Uses
A. The following uses are permitted outright within the Medium Density District,
subject to compliance with all other applicable requirements of the Tukwila Municipal
Code:
1. Dwelling One detached single family dwelling per lot.
2. Dwelling Multi family duplex, triplex, or fourplex units or townhouse up
to four attached units.
3. Detached zero-lot -line units.
4. Animal veterinary, including associated temporary indoor boarding; access
to an arterial required.
5. Day care centers.
6. Public parks, trails, picnic areas and playgrounds, but not including
amusement parks, golf courses, or commercial recreation.
7. Shelters.
B. In Commercial Redevelopment Areas 1, 2, and 4 (see Figures 18 -9 or 18 -10), the
uses and development standards of the adjacent commercial zone are permitted and
shall apply, subject to the specific criteria and procedures defined in TMC 18.60.060.
Section 12. Ordinance Nos. 1976 §23, and 1758 §1 (part), as codified at TMC
18.12.070, are hereby amended to read as follows;
18.12.070 Basic Development Standards
Development within the Medium Density Residential District shall conform to the
following listed and referenced standards:
MDR BASIC DEVELOPMENT STANDARDS
Lot area, minimum 8,000 sq. ft. (Applied to parent lot for
townhouse plats)
Lot area per unit (multi- family) 3,000 sq. ft. (For townhouses the density
shall be calculated based on one unit per
3000 sq. ft. of parent lot area. The "unit lot"
area shall be allowed to include the
common access easements).
Average lot width (min. 20 ft. street 60 feet (Applied to parent lot for
frontage width), minimum townhouse plats)
Setbacks, minimum: 1 Applied to parent lot for townhouse plats
Front 1st floor 15 feet
Front 2nd floor 20 feet
Front 3rd floor 1 30 feet (20 feet for townhouses)
Second front -1st floor 1 7.5 feet
Second front 2nd floor 10 feet
Second front 3rd floor 15 feet (10 feet for townhouses)
Sides -1st floor 1 10 feet
Sides 2nd floor 20 feet (10 feet for townhouses unless
adjacent to LDR)
Sides 3rd floor 20 feet (30 feet if adjacent to LDR) (10 feet
for townhouses unless adjacent to LDR)
1 Rear -1st floor 110 feet
C:\Documents and Settings\All Use/ ADasktop \KelIMSDATAIOrdinanc Lot Line Zoning.doc
VMD:ksn 2n2 8/2008 Page 4 of 13
Rear 2nd floor 20 feet (10 feet for totivnhouses unless
adjacent to LDR)
Rear 3rd floor 20 feet (30 feet if adjacent to LDR) (10 feet
for townhouses unless adjacent to LDR)
Townhouse building separation,
minimum
1 1 and 2 stony buildings 1 10 feet
3 stony buildings 20 feet
Height, maximum 30 feet
Landscape requirements (minimum): Applied to parent lot for townhouse plats
See Landscape, Recreation, Recycling/Solid
Waste Space requirements chapter for
further requirements
Front(s) 1 15 feet
1 Sides 1 10 feet
1 Rear 1 10 feet 1
1 Development area coverage 50% maximum (75% for townhouses) 1
Recreation space 400 sq. ft. per dwelling unit (1,000 sq. ft.
min.)
1 Off street parking: 1
Residential See TMC Chapter 18.56, Off street Parking
Loading Regulations.
Accessory dwelling unit 1 See Accessory Use section of this chapter
Other uses See TMC Chapter 18.56, Off street Parking
Loading Regulations
Section 13. Ordinance Nos. 1976 §24, 1865 913, 1830 92, and 1758 91 (part), as
codified at TMC 18.14.070, are hereby amended to read as follows:
18.14.020 Permitted Uses
A. The following uses are permitted outright within the High- Density Residential
District, subject to compliance with all other applicable requirements of the Tukwila
Municipal Code.
1. Animal veterinary, including associated temporary indoor boarding; access
to an arterial required.
2. Convalescent and nursing homes for not more than 12 patients.
3. Day care centers.
4. Manufactured /mobile home park, meeting the following requirements:
a. the development site shall comprise not less than two contiguous
acres;
b. overall development density shall not exceed eight dwelling units per
acre;
c. vehicular access to individual dwelling units shall be from the interior
of the park; and
d. emergency access shall be subject to the approval of the Tukwila Fire
Department.
5. Dwelling One detached single family dwelling per lot.
6. Dwelling multi- family.
7. Dwelling townhouse up to four attached units.
8. Libraries, museums or art galleries (public).
9. Parks, trails, picnic areas and playgrounds (public) but not including
amusement parks, golf courses, or commercial recreation.
10. Shelters.
C:1Documents and Settings4Vl Users Des ktop\KeHtyt,MSDATA \OrdinancesVxro Lot Line Zoning.doc
MD:ksn 2/2&/2 2008 Page 5 of 13
B. In Commercial Redevelopment Area 3 (see Figures 18 -9 or 18 -10), the uses and
development standards of the adjacent commercial zone are permitted and shall apply,
subject to the specific criteria and procedures defined in the BAR chapter of this code,
TMC 18.60.060.
Section 14. Ordinance Nos. 1976 §27, 1830 §3, and 1758 §1 (part), as codified at
TMC 18.14.070, are hereby amended to read as follows:
18.14.070 Basic Development Standards
Development within the High Density Residential District shall conform to the
following listed and referenced standards:
HDR BASIC DEVELOPMENT STANDARDS
Lot area, minimum 9,600 sq. ft. (Applied to parent lot for
townhouse plats)
Lot area per unit (multi- family, except 2,000 sq. ft. (For townhouses the density
senior citizen housing) shall be calculated based on one unit per
2000 sq. ft. of parent lot area. The "unit lot"
area shall be allowed to include the
common access easements).
Average lot width (min. 20 ft. street 60 feet (Applied to parent lot for
frontage width), minimum townhouse plats)
Setbacks, minimum: Applied to parent lot for townhouse plats
Front 1st floor 115 feet
Front 2nd floor 120 feet
Front 3rd floor 30 feet (20 feet for townhouses)
Front 4th floor 45 feet (20 feet for townhouses)
Second front 1st floor 7.5 feet
Second front 2nd floor 1 10 feet
Second front 3rd floor 115 feet (10 feet for townhouses)
Second front 4th floor 1 22.5 feet (10 feet for townhouses)
Sides 1st floor 1 10 feet
Sides 2nd floor 20 feet (10 feet for townhouses unless
adjacent to LDR)
Sides 3rd floor 20 feet (30 feet if adjacent to LDR) (10 feet
for townhouses unless adjacent to LDR)
Sides 4th floor 30 feet (20 feet for townhouses unless
adjacent to LDR)
I Rear 1st floor 1 10 feet
Rear 2nd floor 20 feet (10 feet for townhouses unless
adjacent to LDR)
Rear 3rd floor 20 feet (30 feet if adjacent to LDR) (10 feet
for townhouses unless adjacent to LDR)
Rear 4th floor 30 feet (20 feet for townhouses unless
adjacent to LDR)
Townhouse building separation,
minimum
I 1 and 2 stony buildings 10 feet
1 3 and 4 stoni buildings 20 feet 1
1 Height, maximum 145 feet
Development area coverage 50% maximum (except senior citizen
housing), (75% for townhouses)
C:\Documents and SettineskAll Users\ Desk top\Kelly\MSDATA \Ordinances\Zero Lot Line Zonine.doc
MD: sn me oo8 Page 6 of 13
Landscape requirements (minimum): Applied to parent lot for townhouse plats
See Landscape, Recreation, Recycling/Solid
Waste Space requirements chapter for
further requirements
Front(s) 1 15 feet
1 Sides 10 feet
1 Rear 10 feet 1
Recreation space 400 sq. ft. per dwelling unit (1,000 sq. ft.
min.)
1 Recreation space, senior citizen housing 1 100 sq. ft. per dwelling unit 1
1 Off street parking:
Residential (except senior citizen housing) See TMC Chapter 18.56, Off street Parking
Loading Regulations.
1 Accessory dwelling unit (See Accessory Use section of this chapter
Other uses, including senior citizen See TMC Chapter 18.56, Off street Parking
housing Loading Regulations
Performance Standards: Use, activity and operations within a structure or a site shall
comply with (1) standards adopted by the Puget Sound Air Pollution Control Agency
for odor, dust, smoke and other airborne pollutants, (2) TMC Chapter 8.22, "Noise",
and, (3) adopted State and Federal standards for water quality and hazardous
materials. In addition, all development subject to the requirements of the State
Environmental Policy Act, RCW 43.21C, shall be evaluated to determine whether
adverse environmental impacts have been adequately mitigated.
Section 15. Ordinance 1758 §1 (part), as codified at TMC 18.50.070, is hereby
amended to read as follows:
18.50.070 Yard Regulations
A. Fences, walls, poles, posts, and other customary yard accessories, ornaments,
furniture may be permitted in any yard subject to height limitations and requirements
limiting obstruction of visibility to the detriment of public safety. The height of opaque
fences along street frontages is limited to 4 feet, with lattice or other open material
allowed up to 6 feet.
B. In the case of through lots, unless the prevailing front yard pattern on adjoining
lots indicates otherwise, front yards shall be provided on all frontages.
C. Where the front yard that would normally be required on a lot is not in keeping
with the prevailing yard pattern, the DCD may waive the requirement for the normal
front yard and substitute therefore a special yard requirement, which shall not exceed
the average of the yards provided on adjacent lots.
D. In the case of comer lots, a front yard of the required depth shall be provided in
accordance with the prevailing yard pattern, and a second front yard of half the depth
required generally for front yards in the district shall be provided on the other frontage.
E. In the case of comer lots with more than two frontages, the DCD shall
determine the front yard requirements, subject to the following conditions:
1. At least one front yard shall be provided having the full depth required
generally in the district;
2. The second front yard shall be the minimum set forth in the district;
3. In the case of through lots and corner lots, there will be no rear yards but
only front and side yards;
4. In the case of through lots, side yards shall extend from the rear lines of
front yards required. In the case of comer lots, yards remaining after full and hall depth
front yards have been established shall be considered side yards. (See Figure 18-4.)
Section 16. Ordinance 1758 §1 (part), as codified at TMC 18.50.083, is hereby
amended to read as follows:
C:\Documents and Settings\All Users\ Desktop \Kelly\.MSDATA\Ordinances\Zero Lot Line Zoning.doc
MD:ksn 2/282008 Page 7 of 13
18.50.083 Maximum Building Length
In the MDR and HDR zones, the maximum building length shall be as follows:
For all buildings except as described below: MDR.....50 ft
HDR 50 ft
Maximum building length with bonus for modulating off -sets:
For structures with a maximum building height of 2 stories or 25 ft., MDR 100 ft
whichever is less, and having horizontal modulation or a minimum HDR 200 ft
vertical change in roof profile of 4 feet at least every two units or
50 feet, whichever is less:
For structures with a building height over 2 stories or 25 ft., MDR 100 ft
whichever is less, with a horizontal and vertical modulation of 4 ft. HDR 200 ft
or an 8 ft. modulation in either direction:
For townhouse structures with horizontal modulation or a minimum MDR 80 ft
vertical change in roof profile of 4 feet at least every two units or HDR....125 ft
50 feet, whichever is less:
Modulation shall be required for every 2 units or 50 feet, whichever is less, as measured
along the building's length. Grouping of offsets in maximum four unit modules may be
permitted only with BAR approval (see Figure 18 -5).
Section 17. Ordinance Nos. 1930 §28 and 1758 §1 (part), as codified at TMC
18.50.085, are hereby amended to read as follows:
18.50.085 Maximum Percent Development Area Coverage
In the MDR and HDR zones the maximum percent development area coverage
shall be 50 except for senior citizen housing developments in HDR. If the senior
citizen housing is converted to regular apartments, the 50% limit must be met.
Townhouse developments are allowed up to a maximum of 75% development area
coverage. The Director shall allow this increase from 50% to 75% if the applicant uses
low impact development techniques, provided the site allows for such measures and
the drainage design meets all adopted codes.
Section 18. Ordinance 1872 §14 (part), as codified at TMC 18.52.060, is hereby
amended to read as follows:
18.52.060 Recreation Space Requirements
In all MDR and HDR zoning districts, any proposed multiple- family structure,
complex or development shall provide on the premises and for the use of the occupants
a minimum amount of recreation space according to the following provisions:
1. Required Area.
a. For each proposed dwelling unit in the multiple- family development
and detached zero-lot -line type of development, a minimum of 400 square feet (100
square feet for senior citizen housing) of recreation space shall be provided. Any
multiple family structure, complex or development shall provide a minimum of 1,000
square feet of total recreation space.
b. Townhouse units shall provide at least 250 square feet of the 400
square feet of recreation space as private, ground level open space measuring not less
than 10 feet in any dimension.
c. The front, side and rear yard setback areas required by the applicable
zoning district shall not qualify as recreation space. However, these setback areas can
qualify as recreation space for townhouses if they are incorporated into private open
space with a minimum dimension of ten feet on all sides.
2. Indoor or Covered Space.
C:\Documents and Settinas 'WI Users\Desktop\Kelly\MSDATA Ordinances'Zero Lot Line Zoning.doc
MD:Isn 2rz8/2 2008 Page 8 of 13
a. No more than 50% of the required recreation space may be indoor or
covered space in standard multi- family developments. Senior citizen housing must
have at least 20% indoor or covered space.
b. The Board of Architectural Review may grant a maximum of two
square feet of recreation space for each one square foot of extensively improved indoor
recreation space provided. Interior facility improvements would include a full range of
weight machines, sauna, hot tub, large screen television and the like.
3. Uncovered Space.
a. A minimum of 50% of the total required recreation space shall be open
or uncovered, up to 100% of the total requirement may be in open or uncovered
recreation space in standard multi- family developments. Senior citizen housing allows
up to 80% of recreation space to be outdoors and has no minimum outdoor space
requirement.
b. Recreation space shall not exceed a 4% slope in any direction unless it
is determined that the proposed space design clearly facilitates and encourages the
anticipated use as endorsed by the Director.
c. The Board of Architectural Review may grant a maximum credit of
two square feet of recreation space for each one square foot of outdoor pool and
surrounding deck area.
4. General Requirements.
a. Multiple family complexes (except senior citizen housing, detached
zero-lot -line and townhouses with nine or fewer units), which provide dwelling units
with two or more bedrooms, shall provide adequate recreation space for children with
at least one space for the 5-to-12-year-old group. Such space shall be at least 25% but not
P Y P P
more than 50% of the total recreation space required under TMC 18.52.060.1, and shall
be designated, located and maintained in a safe condition.
b. Adequate fencing, plant screening, or other buffer shall separate the
recreation space from parking areas, driveways or public streets.
c. The anticipated use of all required recreation areas shall be specified
and designed to clearly accommodate that use.
Section 19. Ordinance 1976 §62, as codified at TMC 18.56.065, is hereby amended
to read as follows:
18.56.065 Residential Parking Requirements
A. Two off -street parking spaces shall be provided for each dwelling unit which
contains up to three bedrooms. One additional off -street parking space shall be required
for every two bedrooms in excess of three bedrooms in a dwelling unit (i.e., four and
five bedroom dwelling units shall have three off -street parking spaces, six and seven
bedroom homes shall have four spaces, and so on).
B. Each unit in a townhouse development shall have an attached garage with
parking for at least one vehicle or a parking space in an underground garage.
C. The Director shall have the discretion to waive the requirement to construct a
portion of the off-street parking requirement if, based on a parking demand study, the
property owner establishes that the dwelling will be used primarily to house residents
who do not and will not drive due to a factor other than age. Such a study shall assure
that ample parking is provided for residents who can drive, guests, caregivers and
other persons who work at the residence. If such a waiver is granted, the property
owner shall provide a site plan, which demonstrates that in the event of a change of use,
which eliminates the reason for the waiver, there is ample room on the site to provide
the number of off -street parking spaces required by this Code. In the event that a
change of use or type of occupant is proposed that would alter the potential number of
drivers living or working at the dwelling, the application for change of use shall be
C:\Documents and Settings \All Users\Des4.'top\Kelly uMSDATA \ordinance,\Zero Lot Line Zoning.doc
NID:ksn 2/282008 Page 9 of 13
conditioned on construction of any additional off -street parking spaces required to meet
the standards of this Code.
Section 20. Ordinance Nos. 1986 §16, 1865 §51, and 1758 §1 (part), as codified at
TMC 18.60.050, are hereby amended to read as follows:
18.60.050 Design Review Criteria
A. Generally. The BAR is authorized to request and rely upon any document,
guideline, or other consideration it deems relevant or useful to satisfy the purpose and
objectives of this chapter, specifically including but not limited to the following criteria.
The applicant shall bear the full burden of proof that the proposed development plans
satisfy all of the criteria. The BAR may modify a literal interpretation of the design
review criteria if, in their judgment such modifications better implement the
Comprehensive Plan goals and policies.
B. Commercial and Light Industrial Design Review Criteria. The following
criteria shall be considered in all cases, except that multi- family, hotel or motel
developments, outside of the Tukwila International Boulevard corridor, shall use the
multi- family, hotel and motel design review criteria, and developments within the
MUO, NCC and RC Districts of the Tukwila International Boulevard corridor (see
Figure 18 -9) shall use the Tukwila International Boulevard design review criteria of this
chapter instead:
1. RELATIONSHIP OF STRUCTURE TO SITE.
a. The site should be planned to accomplish a desirable transition with
streetscape and to provide for adequate landscaping and pedestrian movement.
b. Parking and service areas should be located, designed and screened to
moderate the visual impact of large paved areas.
c. The height and scale of each building should be considered in relation
to the site.
2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA.
a. Harmony on texture, lines and masses is encouraged.
b. Appropriate landscape transition to adjoining properties should be
provided.
c. Public buildings and structures should be consistent with the
established neighborhood character.
d. Compatibility of vehicular pedestrian circulation patterns and loading
facilities in terms of safety, efficiency and convenience should be encouraged.
e. Compatibility of on -site vehicular circulation with street circulation
should be encouraged.
3. LANDSCAPING AND SITE TREATMENT.
a. Where existing topographic patterns contribute to beauty and utility of
a development, they should be recognized, preserved and enhanced.
b. Grades of walks, parking spaces, terraces and other paved areas
should promote safety and provide an inviting and stable appearance.
c. Landscape treatment should enhance architectural features, strengthen
vistas and important axis, and provide shade.
d. In locations where plants will be susceptible to injury by pedestrian or
motor traffic, mitigating steps should be taken.
e. Where building sites limit planting, the placement of trees or shrubs in
paved areas is encouraged.
f. Screening of service yards, and other places that tend to be unsightly,
should be accomplished by use of walls, fencing, planting or combination.
C:\Documents and SettindslAll User\ D-ktop \Kell}AMSDATAIOrdinances\Zero Lot Line Zoning.doo
MD:ksn 2ng/2oo8 Page 10 of 13
g. In areas where general planting will not prosper, other materials such
as fences, walls and pavings of wood, brick, stone or gravel may be used.
h. Exterior lighting, when used, should enhance the building design and
the adjoining landscape. Lighting standards and fixtures should be of a design and size
compatible with the building and adjacent area. Lighting should be shielded, and
restrained in design. Excessive brightness and brilliant colors should be avoided.
4. BUILDILNG DESIGN.
a. Architectural style is not restricted; evaluation of a project should be
based on quality of its design and relationship to its surroundings.
b. Buildings should be to appropriate scale and in harmony with
permanent neighboring developments.
c. Building components such as windows, doors, eaves, and parapets
should have good proportions and relationship to one another. Building components
and ancillary parts shall be consistent with anticipated life of the structure.
d. Colors should be harmonious, with bright or brilliant colors used only
for accent.
e. Mechanical equipment or other utility hardware on roof, ground or
buildings should be screened from view.
f. Exterior lighting should be part of the architectural concept. Fixtures,
standards, and all exposed accessories should be harmonious with building design.
g. Monotony of design in single or multiple buildings projects should be
avoided. Variety of detail, form and siting should be used to provide visual interest.
5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE.
a. Miscellaneous structures and street furniture should be designed to be
part of the architectural concept of design and landscape. Materials should be
compatible with buildings, scale should be appropriate, colors should be in harmony
with buildings and surroundings, and proportions should be to scale.
b. Lighting in connection with miscellaneous structures and street
furniture should meet the guidelines applicable to site, landscape and buildings.
C. Multi- Family, Hotel and Motel Design Review Criteria. In reviewing any multi-
family, hotel or motel application the following criteria shall be used by the BAR in its
decision making as well as the Multi- Family Design Manual or Townhouse Design
Manual. Detached zero -lot -line type of developments shall be subject to Townhouse
Design Manual.
1. snE PLANNING.
a. Building siting, architecture, and landscaping shall be integrated into
and blend harmoniously with the neighborhood building scale, natural environment,
and development characteristics as envisioned in the Comprehensive Plan. For instance,
a multi- family development's design need not be harmoniously integrated with
adjacent single- family structures if that existing single family use is designated as
"Commercial" or "High Density Residential" in the Comprehensive Plan. However, a
"Low Density Residential" (detached single family) designation would require such
harmonious design integration.
b. Natural features, which contribute to desirable neighborhood
character, shall be preserved to the maximum extent possible. Natural features include,
but are not limited to, existing significant trees and stands of trees, wetlands, streams,
and significant topographic features.
c. The site plan shall use landscaping and building shapes to form an
aesthetically pleasing and pedestrian scale streetscape. This shall include, but not be
limited to facilitating pedestrian travel along the street, using architecture and
landscaping to provide a desirable transition from streetscape to the building, and
C: 'Documents and Settings\All Users\Desktop\Kelly iSDATAkOrdinances\Zero Lot Line Zoning.doc
MD:ksn zoraoos Page 11 of 13
providing an integrated linkage from pedestrian and vehicular facilities to building
entries.
d. Pedestrian and vehicular entries shall provide a high quality visual
focus using building siting, shapes, and landscaping. Such a feature establishes a
physical transition between the project and public areas, and establishes the initial sense
of high quality development.
e. Vehicular circulation design shall minimize driveway intersections
with the street.
f. Site perimeter design (i.e. landscaping, structures, and horizontal
width) shall be coordinated with site development to ensure a harmonious transition
between adjacent projects.
g. Varying degrees of privacy for the individual residents shall be
provided; increasing from the public right -of -way, to common areas, to individual
residences. This can be accomplished through the use of symbolic and actual physical
barriers to define the degrees of privacy appropriate to specific site area functions.
h. Parking and service areas shall be located, designed, and screened to
interrupt and reduce the visual impact of large paved areas.
i. The height, bulk, footprint, and scale of each building shall be in
harmony with its site and adjacent long -term structures.
2. BUILDING DESIGN.
a. Architectural style is not restricted; evaluation of a project shall be
based on the quality of its design and its ability to harmonize building texture, shape,
lines and mass with the surrounding neighborhood.
b. Buildings shall be of appropriate height, scale, and design /shape to be
in harmony with those existing permanent neighboring developments which are
consistent with, or envisioned in, the Comprehensive Plan. This will be especially
important for perimeter structures. Adjacent structures that are not in conformance
with the Comprehensive Plan should be considered to be transitional. The degree of
architectural harmony required should be consistent with the nonconforming
structure's anticipated permanence.
c. Building components, such as windows, doors, eaves, parapets, stairs
and decks shall be integrated into the overall building design. Particular emphasis shall
be given to harmonious proportions of these components with those of adjacent
developments. Building components and ancillary parts shall be consistent with the
anticipated life of the structure.
d. The overall color scheme shall work to reduce building prominence
and shall blend in with the natural environment.
e. Monotony of design in single or multiple building projects shall be
avoided. Variety of detail, form, and siting shall be used to provide visual interest.
Otherwise monotonous flat walls and uniform vertical planes of individual buildings
shall be broken up with building modulation, stairs, decks, railings, and focal entries.
Multiple building developments shall use siting and additional architectural variety to
avoid inappropriate repetition of building designs and appearance to surrounding
properties.
3. LANDSCAPE AND SITE TREATMENT.
a. Existing natural topographic patterns and significant vegetation shall
be reflected in project design when they contribute to the natural beauty of the area or
are important to defining neighborhood identity or a sense of place.
b. Landscape treatment shall enhance existing natural and architectural
features, help separate public from private spaces, strengthen vistas and important
C:\Documents and Settins'All Users\ Desktop \Kelly\MSDATA \OrdinanceslZero Lot line Zoning.doc
MD:ksn 2282008 Page 12 of 13
views, provide shade to moderate the affects of large paved areas, and break up visual
mass.
c. Walkways, parking spaces, terraces, and other paved areas shall
promote safety and provide an inviting and stable appearance. Direct pedestrian
linkages to the public street, to on -site recreation areas, and to adjacent public recreation
areas shall be provided.
d. Appropriate landscape transition to adjoining properties shall be
provided.
4. MISCELLANEOUS STRUCTURES.
a. Miscellaneous structures shall be designed as an integral part of the
architectural concept and landscape. Materials shall be compatible with buildings, scale
shall be appropriate, colors shall be in harmony with buildings and surroundings, and
structure proportions shall be to scale.
b. The use of walls, fencing, planting, berms, or combinations of these
shall accomplish screening of service yards and other places that tend to be unsightly.
Screening shall be effective in winter and summer.
c. Mechanical equipment or other utility hardware on roof, ground or
buildings shall be screened from view. Screening shall be designed as an integral part of
the architecture (i.e., raised parapets and fully enclosed under roof) and landscaping.
d. Exterior lighting standards and fixtures shall be of a design and size
consistent with safety, building architecture and adjacent area. Lighting shall be
shielded and restrained in design with no off-site glare spill -over. Excessive brightness
and brilliant colors shall not be used unless clearly demonstrated to be integral to
building architecture.
D. Tukwila International Boulevard Design Review Criteria. In reviewing any
application for development, in the MUO, NCC, and RC Districts within the Tukwila
International Boulevard study area (see Figure 18 -9), the design criteria and guidelines
of the Tukwila International Boulevard Design Manual, as amended, shall be used by
the BAR in its decision making.
E. Parking Structure Design Guidelines. The Parking Structure Design Guidelines
shall be used whenever the provisions of this Title require a design review decision on
proposed or modified parking structures.
Section 21. Severability. If any section, subsection, paragraph, sentence, clause or
phrase of this ordinance or its application to any person or situation should be held to
be invalid or unconstitutional for any reason by a court of competent jurisdiction, such
invalidity or unconstitutionality shall not affect the validity or constitutionality of the
remaining portions of this ordinance or its application to any other person or situation.
Section 22. Effective Date. This ordinance or a summary thereof shall be published
in the official newspaper of the City, and shall take effect and be in full force five days
after passage and publication as provided by law.
PASSED BY THE CITY COUNCIL OF THE CITY OF TUKTATILA, WASHINGTON,
at a Regular Meeting thereof this day of 2008.
ATTEST/ AUTHENTICATED:
Jim Haggerton, Mayor
Jane E. Cantu, CMC, City Clerk
Filed with the City Clerk:
APPROVED AS TO FORM BY: Passed by the City Council:
Published:
Effective Date:
Office of the City Attorney Ordinance Number:
C: \Documents and SettinnslAll Users\ Desktop \Kelly\MSDATA \Ordinanw\Zero Lot Line Zoning doe
MD:ksn 2/28/2008 Page 13 of 13