
Seattle Comprehensive Plan: AIA Work Group
AIA Seattle believes the vision for City of Seattle should be a livable city with a variety of housing near many types of amenities, retail cores, and transit that is accessible to everyone, where everything residents need can be reached within 15 minutes by walking, rolling, or public transit.
Pro Housing Voices Needed!
Seattle’s update of its Comprehensive Plan, a 20-year plan for growth, is arguably one of the most critical points in the city’s history. Required by the state to plan for how the city will accommodate growth over the next two decades, City Council passed the Comp Plan and Permanent HB 1110 legislation in December 2025, and will be rolling out supporting legislation through 2027.
AIA Seattle members have come together to move forward positions for a livability 15-minute city since 2021.
FAQ + Facts Doc: Information to Address Misconceptions About the One Seattle Comprehensive Plan
AIA Seattle has amplified member voices through all phases of Comprehensive Plan development, including:
- December 2024 on Draft Rezoning Maps and Draft Neighborhood Residential Zoning Legislation
- January 2025 letter to Council,
- May 2025 letter from AIA Seattle to City Council on Interim and Permanent Phase I legislatiom.
- September 10, 2025 letter to City Council on permanent phase I legislation and amendments to the One Seattle Comprehensive Plan
HB1110 and Interim Legislation
Interim ‘Middle Housing’ bill was approved by Seattle City Council’s Select Committee on Comprehensive Plan in May 2025. Council was required by state law to pass legislation prior to the June 30, 2025 deadline. HB 1110 is a law passed by the state that effectively eliminates single family zoning, requiring cities of a certain size to allow “middle housing” types, such as duplexes, triplexes, fourplexes, and townhouses, in areas that were previously zoned for single-family homes only.
Interested in getting involved in shaping the future of the City of Seattle? Join a monthly AIA Seattle Comp Plan Work Group meeting by reaching out to info@aiaseattle.org.

