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WA SB5552

Bill

Official Source

Status

Passed

3/14/2026

Primary Sponsor

Jeff Wilson

Click for details

Origin

Senate

2025-2026 Regular Session

AI Summary

  • Creates a new "kit homes" building code category defined as residential structures of 800 square feet or smaller, comprised of prefabricated walls, floors, and roofs assembled on-site
  • Directs the State Building Code Council to complete rulemaking on building codes applicable to kit homes by December 31, 2025
  • Addresses housing affordability by providing a regulatory pathway for small, affordable homes targeted at homebuyers of modest means
  • Amends RCW 19.27.015 to add the kit homes definition to the existing building code chapter
  • Authorizes the State Building Code Council to make future updates to kit home building codes as needed

Legislative Description

Concerning the creation of building codes for kit homes.

Last Action

Effective date 6/11/2026.

3/14/2026

Committee Referrals

Rules2/23/2026
Local Government1/26/2026
Rules4/27/2025
Rules4/2/2025
Local Government3/6/2025
Rules2/21/2025
Local Government1/28/2025

Full Bill Text

No bill text available