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State Land Use Enacted Legislation

Bill # State Year Party Topic

HB 1183

WA 2025 D "Co-Living" and Single-Room Occupancy, Affordable housing incentives and financing, Building code reform, Minimum parking requirements, Planning for climate adaptation and hazards, Technical assistance

Provided by Furman

Summary

Washington HB 1183

  • Requires cities and counties to allow increased building heights and reduced setbacks for residential use in existing nonconforming buildings.
  • Prohibits local governments from imposing facade modulation or upper-level setbacks on affordable housing, modular construction, mass timber projects, and buildings meeting passive house standards.
  • Eliminates off-street parking requirements for most sustainable and affordable housing projects unless a local jurisdiction proves that such limitations significantly compromise safety.
  • Standardizes unit size requirements for low-income affordable housing and mandates that these units be comparable in size to market-rate units within the same project.
  • Sets an implementation deadline for local governments to incorporate these regulations within six months of their next comprehensive plan update or progress report.

Provided by lawmakers

Bill Title

Relating to incentivizing affordable and sustainable building practices through building code and development regulation reform; amending RCW 35.21.990, 35A.21.440, and 36.70A.620; and adding new sections to chapter 36.70A RCW.

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