HomeMy WebLinkAboutPark 2017-07-12 Item 3B - Handout Distributed at Meeting - Accessory Dwelling UnitsADUs — Accessory Dwelling Units
Should Tukwila
allow backyard
cottages or make
other changes to
its mother -in -law
apartment
reg ulations?
Let us know what you
think by taking this
survey:
What is an ADU?
Internal
ir
htt•s: /lwww.surve monke .comb /V6R5JJF
Attached
The results of the survey will be presented to the City Council in
the Fall for possible action.
Detached cottage over garage Alley accessed cottage
For More Information
Please contact the Department of Community Development at 206-431-3670 or visit the DCD offices at 6300
Southcenter Boulevard Suite 100, open from 8:30 a.m. to 5:00 p.m. Monday through Friday.
Internal Unit inside main house
What is an ADU?
An Accessory Dwelling Unit (ADU) is a small, self- contained residential unit built on the same lot as an
existing single family home. Examples of ADUs include: an apartment over a garage, a basement
apartment, and an addition to an existing home. These are sometimes called mother -in -law
apartments.
What Makes an ADU Different From a Home Addition?
An ADU adds an additional dwelling unit - separate living quarters with its own kitchen and bathroom
- to an existing property. This differs from a home addition which only adds to the home, such as an
additional bedroom or living room, rather than creating a new, separate unit.
Does My ADU Meet Code?
ADU's are allowed in residential zones if they comply with the standards listed below and meet the
Building Code. Tukwila City Council adopted criteria for ADUs to ensure that the new units fit with the
neighborhood and do not take away from the character of Tukwila's residential areas.
Tukwila's current standards for ADUs are:
• Minimum lot size of 7,200 square feet
• The ADU is no more than 33% of the square footage of the primary residence and a maximum
of 1,000 square feet, whichever is less
• One of the residences is the primary residence of a person who owns at least 50% of the
property
• The unit is incorporated into the primary single - family residence, not a separate unit, so that
both units appear to be of the same design as if constructed at the same time
• Minimum of three parking spaces on the property with an ADU less than 600 square feet, and a
minimum of four parking spaces for an ADU over 600 square feet
• The ADU is not sold as a condominium