summary
Introduced
01/28/2025
01/28/2025
In Committee
02/23/2026
02/23/2026
Crossed Over
03/04/2025
03/04/2025
Passed
03/14/2026
03/14/2026
Dead
Signed/Enacted/Adopted
03/14/2026
03/14/2026
Introduced Session
2025-2026 Regular Session
Bill Summary
AN ACT Relating to the creation of building codes for kit homes; 2 reenacting and amending RCW 19.27.015; adding a new section to 3 chapter 19.27 RCW; and creating a new section. 4
AI Summary
This bill establishes a new category of building codes specifically for "kit homes," which are defined as residential structures made of prefabricated walls, floors, and roofs that are assembled on-site and are 800 square feet or smaller. The legislature's intent is to address the rising cost of housing by creating these codes to make smaller homes more affordable for more people. The bill instructs the State Building Code Council to develop rules for these kit home building codes by March 31, 2027, and grants them the authority to update these codes as needed.
Committee Categories
Government Affairs
Sponsors (21)
Jeff Wilson (R)*,
John Braun (R),
Mike Chapman (D),
Leonard Christian (R),
Adrian Cortes (D),
Perry Dozier (R),
Phil Fortunato (R),
Noel Frame (D),
Chris Gildon (R),
Keith Goehner (R),
Jeff Holy (R),
Deborah Krishnadasan (D),
Marko Liias (D),
Jim McCune (R),
T'wina Nobles (D),
Bill Ramos (D),
Sharon Shewmake (D),
Shelly Short (R),
Vandana Slatter (D),
Judy Warnick (R),
Claire Wilson (D),
Last Action
Effective date 6/11/2026. (on 03/14/2026)
Taxonomy
Community Development and Housing Issues
- ‐ General Housing and Community Development
- ‐ Housing and Community Development for Low and Middle Income Persons
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