WA People
BILL · 2025–26 SESSION · LATEST VERSION ESSB 5552

SB 5552: Kit homes/building codes

Concerning the creation of building codes for kit homes.

Summary

  • Requires the State Building Code Council to conduct rulemaking on the portions of the State Building Code applicable to kit homes by March 31, 2027.

From the Engrossed Substitute House Bill Report (ESSB 5552), written by the Legislature's nonpartisan staff. Read the full report ↗

Enacted Enacted · Chapter 41, Laws of 2026
  1. IntroducedJan 28, 2025
  2. Out of committeeFeb 21, 2025
  3. Passed SenateMar 4, 2025
  4. Passed HouseMar 3, 2026
  5. GovernorMar 14, 2026
  6. LawMar 14, 2026
Prime sponsor
Jeff Wilson (R-19)
Introduced
January 28, 2025 in the Senate
Last action
March 14, 2026
Session law
Chapter 41, Laws of 2026
Budget
Has a fiscal note
Versions
SB 5552, SSB 5552, ESSB 5552

AN ACT Relating to the creation of building codes for kit homes;

Sponsors

Prime sponsor: Jeff Wilson (R-19)

20 co-sponsors (10 Democrats, 10 Republicans)

Sharon Shewmake D-42Phil Fortunato R-31T'wina Nobles D-28John Braun R-20Shelly Short R-7Chris Gildon R-25Leonard Christian R-4Mike Chapman D-24Jeff Holy R-6Jim McCune R-2Judy Warnick R-13Keith Goehner R-12Perry Dozier R-16Claire Wilson D-30Vandana Slatter D-48Adrian Cortes D-18Marko Liias D-21Noel Frame D-36Deborah Krishnadasan D-26Bill Ramos D-5

Votes

Senate · 3rd Reading & Final Passage

Passed March 4, 2025
Version voted on: ESSB 5552
49 Yea 0 Nay 0 Absent 0 Excused
PartyYeaNayAbsentExcused
Democrat30000
Republican19000
How each member voted

Yea (49)

Permalink to this vote

Senate · 3rd Reading & Final Passage

Passed January 21, 2026
Version voted on: ESSB 5552
49 Yea 0 Nay 0 Absent 0 Excused
PartyYeaNayAbsentExcused
Democrat30000
Republican19000
How each member voted

Yea (49)

Permalink to this vote

House · 3rd Reading & Final Passage

Passed March 3, 2026
Version voted on: ESSB 5552
93 Yea 0 Nay 0 Absent 5 Excused
PartyYeaNayAbsentExcused
Democrat55004
Republican38001
How each member voted

Yea (93)

Permalink to this vote

History

  1. Effective date 6/11/2026. (ESSB 5552)
  2. Chapter 41, 2026 Laws. (ESSB 5552)
  3. Governor signed. (ESSB 5552)
  4. Delivered to Governor. (ESSB 5552)
  5. Speaker signed. (ESSB 5552)
  6. President signed. (ESSB 5552)
  7. Third reading, passed; yeas, 93; nays, 0; absent, 0; excused, 5. (ESSB 5552)
  8. Rules suspended. Placed on Third Reading. (ESSB 5552)
  9. Rules Committee relieved of further consideration. Placed on second reading. (ESSB 5552)
  10. Referred to Rules 2 Review. (ESSB 5552)
  11. LG - Majority; do pass. (ESSB 5552)
  12. LG - Executive action taken by committee. (ESSB 5552)
  13. First reading, referred to Local Government. (ESSB 5552)
  14. Floor amendment(s) adopted. (ESSB 5552)
  15. Returned to second reading for amendment. (ESSB 5552)
  16. Rules suspended. (ESSB 5552)
  17. Third reading, passed; yeas, 49; nays, 0; absent, 0; excused, 0. (ESSB 5552)
  18. Rules suspended. Placed on Third Reading. (ESSB 5552)
  19. Placed on third reading by Rules Committee. (ESSB 5552)
  20. By resolution, reintroduced and retained in present status. (ESSB 5552)
  21. By resolution, returned to Senate Rules Committee for third reading. (ESSB 5552)
  22. Referred to Rules 2 Review. (ESSB 5552)
  23. LG - Majority; do pass with amendment(s). (ESSB 5552)
  24. LG - Executive action taken by committee. (ESSB 5552)
  25. First reading, referred to Local Government. (ESSB 5552)
  26. Third reading, passed; yeas, 49; nays, 0; absent, 0; excused, 0. (ESSB 5552)
  27. Rules suspended. Placed on Third Reading. (ESSB 5552)
  28. 1st substitute bill substituted. (ESSB 5552)
  29. 1st substitute bill substituted.
  30. Placed on second reading by Rules Committee. (ESSB 5552)
  31. Placed on second reading by Rules Committee.
  32. Passed to Rules Committee for second reading. (ESSB 5552)
  33. Passed to Rules Committee for second reading.
  34. LGV - Majority; 1st substitute bill be substituted, do pass. (ESSB 5552)
  35. LGV - Majority; 1st substitute bill be substituted, do pass.
  36. First reading, referred to Local Government.

SB 5552 in other sessions

Bill numbers restart every two years, so the same number is a different bill in each session.

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