WA People
BILL · 2025–26 SESSION · LATEST VERSION ESB 5529

SB 5529: ADU tax exemptions

Amending the county population threshold for counties that may exempt from taxation the value of accessory dwelling units to incentivize rental to low-income households.

Summary

  • Expands the authorization for a property tax exemption for accessory dwelling units to include counties with a population of at least 900,000 but not more than 1.5 million and the cities located within those counties.

From the Engrossed House Bill Report (ESB 5529), written by the Legislature's nonpartisan staff. Read the full report ↗

Enacted Enacted · Chapter 207, Laws of 2025
  1. IntroducedJan 27, 2025
  2. Out of committeeFeb 18, 2025
  3. Passed SenateMar 11, 2025
  4. Passed HouseApr 15, 2025
  5. GovernorMay 7, 2025
  6. LawMay 7, 2025
Prime sponsor
Chris Gildon (R-25)
Introduced
January 27, 2025 in the Senate
Last action
May 7, 2025
Session law
Chapter 207, Laws of 2025
Budget
Has a fiscal note
Versions
SB 5529, ESB 5529

AN ACT Relating to amending the county population threshold for counties that may exempt from taxation the value of accessory dwelling units to incentivize rental to low-income households;

Sponsors

Prime sponsor: Chris Gildon (R-25)

Votes

Senate · 3rd Reading & Final Passage

Passed March 11, 2025
Version voted on: ESB 5529
48 Yea 0 Nay 0 Absent 1 Excused
PartyYeaNayAbsentExcused
Democrat29001
Republican19000
How each member voted

Yea (48)

Excused (1)

Permalink to this vote

House · 3rd Reading & Final Passage

Passed April 15, 2025
Version voted on: ESB 5529
89 Yea 8 Nay 0 Absent 1 Excused
PartyYeaNayAbsentExcused
Democrat58100
Republican31701
How each member voted

Yea (89)

Excused (1)

Permalink to this vote

History

  1. Effective date 7/27/2025. (ESB 5529)
  2. Chapter 207, 2025 Laws. (ESB 5529)
  3. Governor signed. (ESB 5529)
  4. Delivered to Governor. (ESB 5529)
  5. President signed. (ESB 5529)
  6. Speaker signed. (ESB 5529)
  7. Third reading, passed; yeas, 89; nays, 8; absent, 0; excused, 1. (ESB 5529)
  8. Rules suspended. Placed on Third Reading. (ESB 5529)
  9. Rules Committee relieved of further consideration. Placed on second reading. (ESB 5529)
  10. Referred to Rules 2 Review. (ESB 5529)
  11. FIN - Executive action taken by committee. (ESB 5529)
  12. FIN - Majority; do pass. (ESB 5529)
  13. First reading, referred to Finance. (ESB 5529)
  14. Third reading, passed; yeas, 48; nays, 0; absent, 0; excused, 1. (ESB 5529)
  15. Rules suspended. Placed on Third Reading. (ESB 5529)
  16. Floor amendment(s) adopted. (ESB 5529)
  17. Placed on second reading by Rules Committee. (ESB 5529)
  18. Passed to Rules Committee for second reading. (ESB 5529)
  19. Minority; without recommendation. (ESB 5529)
  20. WM - Majority; do pass. (ESB 5529)
  21. First reading, referred to Ways & Means. (ESB 5529)

SB 5529 in other sessions

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

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