---
type: "Bill"
title: "Concerning building code and development regulation reform."
description: "Concerning building code and development regulation reform."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2025-2026"
identifier: "HB 1183"
citation: "Washington HB 1183 (2025-2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Duerr"]
version_count: 4
action_count: 39
vote_count: 2
first_action: "2025-01-07"
last_action: "2025-04-22"
source: "openstates"
source_identifier: "ocd-bill/8170ce2f-d9cd-402a-bdc3-2a4cb6e90698"
source_url: "https://app.leg.wa.gov/billsummary/?BillNumber=1183&Year=2025&Initiative=false"
source_hash: "3cb44db693a879e83ccdad025c5f9e7781ef79f4e0c58bf838bb34af3199ac82"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-wa"]
---

# Washington HB 1183 (2025-2026) — Concerning building code and development regulation reform.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/House%20Bills/1183.htm)
2. **Second Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/House%20Bills/1183-S2.htm)
3. **Second Substitute Passed Legislature** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/House%20Passed%20Legislature/1183-S2.PL.htm)
4. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/House%20Bills/1183-S.htm)

## Votes

- 3rd Reading & Final Passage (#19) — **28–21** (pass) · upper
- 3rd Reading & Final Passage (#28) — **56–39** (pass) · lower

## Sponsors

- Duerr — primary (person)
- Berg — cosponsor (person)
- Berry — cosponsor (person)
- Davis — cosponsor (person)
- Doglio — cosponsor (person)
- Fitzgibbon — cosponsor (person)
- Leavitt — cosponsor (person)
- Parshley — cosponsor (person)
- Reed — cosponsor (person)
- Ryu — cosponsor (person)
- Taylor — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-01-07** Prefiled for introduction. `filing`
- **2025-01-13** First reading, referred to Local Government. `reading-1`
- **2025-01-21** Public hearing in the House Committee on Local Government at 10:30 AM.
- **2025-01-24** Executive action taken in the House Committee on Local Government at 10:30 AM.
- **2025-01-24** LG - Majority; 1st substitute bill be substituted, do pass. `substitution`
- **2025-01-24** Minority; without recommendation. `committee-passage-unfavorable`
- **2025-01-29** Referred to Appropriations. `referral-committee`
- **2025-02-22** Public hearing in the House Committee on Appropriations at 9:00 AM.
- **2025-02-25** Executive action taken in the House Committee on Appropriations at 1:30 PM.
- **2025-02-25** APP - Majority; 2nd substitute bill be substituted, do pass. `substitution`
- **2025-02-25** Minority; do not pass. `committee-passage-unfavorable`
- **2025-02-28** Referred to Rules 2 Review. `referral-committee`
- **2025-03-10** Rules Committee relieved of further consideration. Placed on second reading. `reading-2`
- **2025-03-11** 2nd substitute bill substituted (APP 25). `substitution`
- **2025-03-11** Rules suspended. Placed on Third Reading. `reading-3`
- **2025-03-11** Third reading, passed; yeas, 56; nays, 39; absent, 0; excused, 3. `reading-3`
- **2025-03-13** First reading, referred to Local Government. `reading-1`
- **2025-03-17** Public hearing in the Senate Committee on Local Government at 1:30 PM.
- **2025-03-24** Executive action taken in the Senate Committee on Local Government at 1:30 PM.
- **2025-03-24** LGV - Majority; do pass. `committee-passage-favorable`
- **2025-03-24** Minority; do not pass. `committee-passage-unfavorable`
- **2025-03-24** Minority; without recommendation. `committee-passage-unfavorable`
- **2025-03-24** And refer to Ways & Means. `referral-committee`
- **2025-03-25** Referred to Ways & Means. `referral-committee`
- **2025-04-03** Public hearing in the Senate Committee on Ways & Means at 1:30 PM.
- **2025-04-07** Executive action taken in the Senate Committee on Ways & Means at 1:30 PM.
- **2025-04-07** WM - Majority; do pass. `committee-passage-favorable`
- **2025-04-07** Minority; do not pass. `committee-passage-unfavorable`
- **2025-04-07** Minority; without recommendation. `committee-passage-unfavorable`
- **2025-04-08** Passed to Rules Committee for second reading.
- **2025-04-09** Placed on second reading by Rules Committee. `reading-2`
- **2025-04-14** Rules suspended. Placed on Third Reading. `reading-3`
- **2025-04-14** Third reading, passed; yeas, 28; nays, 21; absent, 0; excused, 0. `reading-3`
- **2025-04-15** Speaker signed. `passage`
- **2025-04-16** President signed. `passage`
- **2025-04-17** Delivered to Governor. `executive-receipt`
- **2025-04-22** Governor signed. `executive-signature`
- **2025-04-22** Chapter 139, 2025 Laws. `became-law`
- **2025-04-22** Effective date 7/27/2025. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/8170ce2f-d9cd-402a-bdc3-2a4cb6e90698`. Confidence: reported (aggregated from official Washington legislature records).