open🌐 City of Seattle2025-061
ADUniverse 2.0: Pre-approved plans for ADUs and middle housing
City of Seattle / Office of Planning and Community Development
Description
The City of Seattle is updating its ADUniverse website with new pre-approved plans for accessory dwelling units (ADUs) and middle housing now allowed throughout Seattle's residential zones. We invite designers, architects, and homebuilders to submit ADU and middle housing designs that fulfill the criteria and follow the requirements outlined in our Submission Guide.
Documents (1)?
- Download📎 project_document_snapshot.pdfapplication/pdf · 258 KB
Details?
- Posted
- May 12, 2026
- Response deadline
- Jul 16, 2026, 6:59 AM UTC (5d)
- Status
- open
- Buyer
- City of Seattle
- Department
- Office of Planning and Community Development
- Jurisdiction
- City of Seattle
- Reference #
- 2025-061
- Summary
- The City of Seattle is updating its ADUniverse website with new pre-approved plans for accessory dwell
- Government Code
- seattle
- Government Organization State
- WA
- Government Organization Website
- http://seattle.gov/
- Government Organization Zip Code
- 98104
- Government Organization Address1
- 700 5th Ave
- Government Organization Country Code
- US
Contact
(206)684-3000
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