WA HB1345 | 2025-2026 | Regular Session

Status

Completed Legislative Action
Sponsorship: Moderate Partisan Bill (Democrat 4-1)
Status: Passed on March 27 2026 - 100% progression
Action: 2026-03-27 - Effective date 6/11/2026.
Text: Latest bill text (Chaptered) [PDF]

Summary

Establishing limitations on detached accessory dwelling units outside of urban growth areas.

Tracking Information

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Title

Establishing limitations on detached accessory dwelling units outside of urban growth areas.

Sponsors


Roll Calls

2026-03-03 - Senate - Senate 3rd Reading & Final Passage (Y: 33 N: 15 NV: 0 Abs: 1) [PASS]
2026-02-18 - Senate - Senate Committee on Housing: do pass (Y: 7 N: 0 NV: 0 Abs: 0) [PASS]
2026-01-22 - House - House 3rd Reading & Final Passage (Y: 86 N: 5 NV: 0 Abs: 7) [PASS]
2025-02-06 - House - House Committee on Housing: do pass (Y: 17 N: 0 NV: 0 Abs: 0) [PASS]

History

DateChamberAction
2026-03-27HouseEffective date 6/11/2026.
2026-03-27HouseChapter 231, 2026 Laws.
2026-03-27HouseGovernor signed.
2026-03-06HouseDelivered to Governor.
2026-03-04SenatePresident signed.
2026-03-04HouseSpeaker signed.
2026-03-03SenateThird reading, passed; yeas, 33; nays, 15; absent, 0; excused, 1.
2026-03-03SenateRules suspended. Placed on Third Reading.
2026-02-24SenatePlaced on second reading by Rules Committee.
2026-02-19SenatePassed to Rules Committee for second reading.
2026-02-18SenateHSG - Majority; do pass.
2026-02-18SenateExecutive action taken in the Senate Committee on Housing at 10:30 AM.
2026-02-04SenatePublic hearing in the Senate Committee on Housing at 10:30 AM.
2026-01-26SenateFirst reading, referred to Housing.
2026-01-22HouseThird reading, passed; yeas, 86; nays, 5; absent, 0; excused, 7.
2026-01-22HouseRules suspended. Placed on Third Reading.
2026-01-22HouseFloor amendment
2026-01-19HouseRules Committee relieved of further consideration. Placed on second reading.
2026-01-12HouseBy resolution, reintroduced and retained in present status.
2025-03-19HouseReturned to Rules Committee for second reading.
2025-03-06HouseRules Committee relieved of further consideration. Placed on second reading.
2025-02-10HouseReferred to Rules 2 Review.
2025-02-06HouseHOUS - Majority; do pass.
2025-02-06HouseExecutive action taken in the House Committee on Housing at 8:00 AM.
2025-01-27HousePublic hearing in the House Committee on Housing at 1:30 PM.
2025-01-16HouseFirst reading, referred to Housing.

Code Citations

ChapterArticleSectionCitation TypeStatute Text
3670aNew CodeSee Bill Text
3670a696Amended CodeSee Bill Text

Washington State Sources

TypeSource
Summaryhttps://app.leg.wa.gov/billsummary?BillNumber=1345&Year=2025&Initiative=false
Texthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/House%20Bills/1345.pdf
Texthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/House%20Bills/1345.E.pdf
Texthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/House%20Passed%20Legislature/1345.PL.pdf
Texthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Session%20Laws/House/1345.SL.pdf
Amendmenthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/1345%20AMH%20PETE%20VASE%20170.pdf
Amendmenthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/1345%20AMH%20PETE%20VASE%20222.pdf
Amendmenthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/1345.E%20AMS%20SHOR%20S5611.1.pdf
Amendmenthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/1345.E%20AMS%20WAGO%20S5690.1.pdf
Amendmenthttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/1345.E%20AMS%20SCHO%20S5913.1.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/1345%20HBA%20HOUS%2025.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/1345%20HBR%20HOUS%2025.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/1345.E%20HBR%20APH%2026.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/1345.E%20SBA%20HSG%2026.pdf
Supplementhttps://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=71846
Supplementhttps://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=71907
Supplementhttps://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=76517
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/1345.E%20SBR%20HSG%20TA%2026.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/1345.E%20SBR%20HSG%20OC%2026.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/1345.E%20SBR%20APS%2026.pdf
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/1345.E%20HBR%20PL%2026.pdf
Supplementhttps://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77550
Supplementhttps://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/1345.E%20HBR%20FBR%2026.pdf
Roll Callhttps://app.leg.wa.gov/billsummary/majorityminority/recommendation?type=majority&legId=132740&actionText=HOUS%20-%20Majority%3B%20do%20pass.&mId=32646&isInit=False&biennium=2025-26
Roll Callhttps://app.leg.wa.gov/billsummary/rollcall/vote?legId=132740&chamber=House&actionHistoryDate=01-22-2026&indexOnDayByChamber=1&billNumber=1345&isInit=False&biennium=2025-26
Roll Callhttps://app.leg.wa.gov/billsummary/majorityminority/recommendation?type=majority&legId=132740&actionText=HSG%20-%20Majority%3B%20do%20pass.&mId=33952&isInit=False&biennium=2025-26
Roll Callhttps://app.leg.wa.gov/billsummary/rollcall/vote?legId=132740&chamber=Senate&actionHistoryDate=03-03-2026&indexOnDayByChamber=1&billNumber=1345&isInit=False&biennium=2025-26

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