HomeMy WebLinkAboutPCD 2021-03-01 Item 1B - Discussion - King County Growth Targets and Buildable Landsof Tukwila
Allan Ekberg, Mayor
INFORMATIONAL MEMORANDUM
TO: Planning & Community Development Committee
FROM: Minnie Dhaliwal, Deputy DCD Director
BY: Jaimie Reavis
CC: Mayor Ekberg
DATE: March 1, 2021
SUBJECT: Buildable Lands Analysis and Growth Targets
ISSUE
The Committee of the Whole received a briefing from King County and staff in January 2021 on
the process of setting growth targets for the next round of comprehensive plan updates in 2023-
2024. This memo provides more details on the Buildable Lands Analysis for Tukwila, and what it
shows in terms of Tukwila's capacity to receive development that will accommodate growth
targets for housing units and jobs.
BACKGROUND
A. Buildable Lands Analysis:
Cities coordinate with each other and with King County on an eight-year cycle to implement
the Growth Management Act. As part of this cycle, King County updates the Countywide
Planning Policies (CPPs) to set up a framework for planning coordination among cities and
the region. King County is currently updating the CPPs in preparation for Comprehensive
Plan updates cities will be required to do in 2023-2024.
CPPB
BUILDABLE LANDS
PERIODIC COMPREHENSIVE
PLAN UPDATE
PERIODIC COMPREHENSIVE BUILDABLE LANDS REPORT PERIODIC COMPREHENSIVE
PLAN DEADLINE
1 * 1 f 1
DUE JUNE 33. 2027 PLAN DEADLINE
I 1 * 1 1 * 1 I
i,Wl <1777 iSr i :±,i4 ;11>1
OFM populefron OFM population
projections prpjectione
As part of the continuous eight-year update process, state law (RCW 36.70A.115) requires
counties and cities to "ensure that, taken collectively, adoption of and amendments to their
comprehensive plans and/or development regulations provide sufficient capacity of land
suitable for development within their jurisdictions to accommodate their allocated housing
and employment growth, as adopted in the applicable countywide planning policies and
consistent with the twenty-year population forecast from the office of financial management."
The way that this is done is through a review and evaluation program outlined in RCW
36.70A.215, which has come to be referred to as "buildable lands."
King County works with cities to provide guidance on how to complete the buildable lands
analysis to ensure that cities within King County use a consistent methodology. From late
2018 through late 2020, cities around the county have been completing three phases of data
collection and reporting for the latest buildable lands report.
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INFORMATIONAL MEMO
Page 2
The three phases include:
Phase 1: Measurement of achieved density of residential and commercial
development from 2012-2018.
Phase 2: Analysis of planned density and land supply.
Phase 3: Applying achieved or assumed density to vacant and redevelopable land to
measure capacity for future development.
The data reported to King County on available land supply for new households and jobs
factors into the growth target setting process.
B. Growth Target:
Growth targets are a policy statement about the amount of housing and jobs each
jurisdiction will plan for in the 2024 Comprehensive Plan. These are part of the Countywide
Planning Policies that are adopted by King County Council for the next 20 -year period.
To determine the number of housing units and jobs the county should plan for over the next
20 years, King County uses population projections from the Office of Financial Management
and an economic forecast from the Puget Sound Regional Council. The Regional Growth
Strategy in the PSRC's Vision 2050 plan also guides the amount of growth apportioned to
King County, as well as to regional geographies within King County. Within regional
geographies, cities and King County collaboratively determine targets for each jurisdiction,
relative to the amount of capacity, presence of growth centers, and high-capacity transit
within cities.
Based on the forecasts, the population growth for the Puget Sound Region for 2019-2044
period is anticipated to be approximately 1.3 million and job growth projection is 884,450
jobs. King County is expected to take approximately 50 percent of this growth. There are a
total of 10 core cities in King County and collectively these core cities are expected to plan
for 112,850 housing units and 222,800 jobs.
DISCUSSION
Previous Targets and Development Trends
Housing and jobs targets for the 2015-2035 time -period used in the 2015 Tukwila
Comprehensive Plan update were as follows:
Existing Housing
Existing Job Target
Target (2015-2035)
(2015-2035)
5,626
20,358
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INFORMATIONAL MEMO
Page 3
From 2015-
2020, a total of
846 housing
units were
constructed in
Tukwila. The
graph at right
shows total
numbers of
existing
housing units
in Tukwila, as
reported to the
Office of
Financial
Management.
The sharp rise
in number of units from 2018-2020 reflects new multifamily developments in the Tukwila Urban
Center and the Tukwila International. Blvd. corridor.
8800
8600
• 8400
• 8200
8000
0
= 7800
▪ 7600
7400
7200
7755
7726 7733 7740
7761
7779
7799
7833
8625
8445
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do ti ti ti ti ti ti ti ti ti ti
Yearly Postcensal Estimate of Total Housing Units
The current buildable lands analysis shows that the City has capacity for the following (taking
into consideration critical areas and zoninal:
Current Housing Unit
Capacity
Current Job Capacity
7,255
20,550
Growth Target Setting
The Target Baselines for each City have been developed by King County for the planning period
of 2019-2044. King County ran different housing and jobs target scenarios for each city,
assigning targets proportionally to each city in the county based on factors including number of
housing units constructed in 2012-2018 as a proportion of the total within the county, number of
existing housing units, number of jobs, etc. The ranges shown below represent the low and high
values that resulted for the number of housing units and jobs in Tukwila. King County then took
an average of the values to determine each city's baseline. The cities are now in the process of
negotiating with each other to take more or Tess of the target, based on local knowledge of the
economic and political environment. At this time there are still 3,200 housing units that need to
be allocated, and most cities have tentatively agreed to take proportional share of additional
housing units.
Target Baselines
Housing
Jobs
Range: 2,104 — 10,062
Range: 2,951 — 24,011
Baseline: 5,612 (up to 6,500)
Baseline: 14,760
For Tukwila to achieve the growth target of 6,500 housing units, an average of 260 units per
year would need to be constructed over the 25 -year time -period. Continuation of the type of
development that has occurred recently in the Tukwila Urban Center (Airmark Apartments,
Marvelle) and along the TIB Corridor (Tukwila Village, Bellwether) would make achieving the
target feasible. The pie chart on the next page provides information on the relative amount of
capacity that exists in Tukwila zoning districts.
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INFORMATIONAL MEMO
Page 4
Capacity for Housing Units in Tukwila
Zoning Districts
poi MDR
3D HDR
4%
MUO
1%
-�.RC
PNCC 8%
RCC 6%
0%
■LDR ■MDR ■HDR MUO ■RC ■NCC ■RCC ■TUC ■TVS
Capacity for non-residential development is more difficult to estimate. Tukwila has the capacity
to build approximately 9,790,000 square feet in which new jobs would be located. Recent
commercial and industrial development in Tukwila has tended to be warehouse development or
one-story retail development. These have a very high square footage per job compared to office
buildings. Using the high square footage per job average of 700 square feet, approximately
14,000 jobs would be able to be accommodated in the amount of square feet of capacity in
Tukwila. Many of the other cities in the region have requested a lower jobs target than the
baseline.
King County will continue to work on finalizing the housing and jobs targets, which will be
reviewed by the Growth Management Planning Council and adopted by the King County
Council as part adoption of the Countywide Planning Policies.
FINANCIAL IMPACT
None.
RECOMMENDATION
Staff is recommending approval of the baseline numbers and requesting committee approval.
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