Building Codes and Permits: Washington bills, 2025 and 2026
Legislative staff filed 23 bills from the 2025-26 session under Building Codes and Permits. Each one is listed below with the description staff wrote for it, and bills with a page of their own are linked.
- HB 1029 · Residential code, adopting international code appendix BM related to 3D-printed building construction
- HB 1254 · International wildland urban interface code, implementing
- HB 1458 · Embodied carbon emissions, reducing in building projects
- HB 1543 · Clean buildings performance standard, alternative metrics
- HB 1562 · Baby diaper changing stations, requiring in public buildings
- HB 1654 · International fire code, modifying responsibility for unincorporated areas
- HB 1757 · Energy code, requirements for modifying existing residential buildings
- HB 2141 · Code changes paused and reduced in frequency
- HB 2228 · Scissor stair technical advisory group convened
- HB 2273 · Embodied carbon emissions, reducing in building projects
- HB 2346 · Performance-based code compliance pathway for middle housing, establishing with technical advisory group
- HB 2381 · Performance-based code compliance pathway for low-rise residential buildings, adoption and advisory group
- HB 2486 · Design exemptions for economically impractical energy code requirements authorized
- SB 5055 · Agritourism buildings, building code exemptions
- SB 5156 · Elevators, standards adopted and technical advisory group convened
- SB 5514 · Clean buildings performance standard, alternative metrics
- SB 5552 · Kit homes, requiring building codes
- SB 5571 · Exterior cladding, prohibiting requiring or excluding exterior cladding materials if compliant
- SB 5747 · Affordable housing, allowing construction according to older codes
- SB 6001 · Scissor stair technical advisory group convened
- SB 6064 · International fire code, modifying responsibility for unincorporated areas
- SB 6272 · Bird-safe materials and nighttime lighting reduction
- SB 6279 · International wildland urban interface code, implementing
All topics · All 2025-26 Washington State bills
Source: the Washington State Legislature’s Topical Index. OlympiaTrack is an independent bill-tracking service and is not affiliated with the Legislature.