Housing (Zoning)

in committee · Washington · Senate Jan 12, 2026

SB 5615: Concerning project permit applications for residential housing units.

This bill requires cities to review residential housing permit applications under the zoning rules in effect when a fully completed application is submitted, rather than current rules. It allows cities to pause processing until fees are paid or notices are posted, but does not make applications invalid for missing these items. The law applies to projects in urban growth areas and does not override other requirements like those in chapter 43.21C RCW. It standardizes the timing for permit reviews to reduce delays in housing development.

Topics ✓ HousingSupports HousingStreamlines housing permits by applying historical zoning rules, reducing developer uncertainty and facilitating construction in urban areas.95% confidence

Sub-Topics Building Codes Property Development Zoning

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in committee · Washington · Senate Feb 26, 2026

SB 5470: Establishing limitations on detached accessory dwelling units outside urban growth areas.

SB 5470 establishes rules for detached accessory dwelling units (secondary housing units) on single-family properties outside urban growth areas in Washington. It limits each parcel to one such unit, caps size at 1,296 square feet (excluding garages), requires water/sewer capacity documentation, and mandates units be within 150 feet of the main home. Counties must annually track permits and short-term rentals, update land use plans to account for these units, and prohibit short-term rentals unless the main home is owner-occupied. The bill applies to rural and suburban areas where counties currently allow such units.

Topics ✗ HousingOpposes HousingLimits ADU development to one unit per parcel with size/location restrictions, reducing potential housing supply outside urban growth areas.85% confidence

Sub-Topics Homeownership Land Use Zoning

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passed · Washington · Senate Jan 12, 2026

SB 5749: Concerning housing development opportunity zones.

SB 5749 allows cities and code cities to designate "housing development opportunity zones" in underutilized areas with existing large commercial structures, such as shopping malls or vacant stores. Within these zones, residential development is prioritized, and projects are encouraged to use existing infrastructure and site areas to help reduce costs. Cities may also waive impact fees for developments in these zones, and designations can be implemented outside of typical planning cycles, provided they are included in the next comprehensive plan update. The bill mandates a review by 2043 to assess the number of housing and affordable housing units created, with a provision for potential repeal if affordable housing targets are not met, and the act is set to expire on July 1, 2045.

Topics ✓ HousingSupports HousingDesignates zones for residential development, waives impact fees, and prioritizes using existing infrastructure to lower costs, directly advancing housing development.90% confidence

Sub-Topics Affordable Housing Land Use Zoning

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signed · Washington · Senate Mar 14, 2026

SB 5552: Concerning the creation of building codes for kit homes.

SB 5552 aims to create a new category of building codes specifically for "kit homes" to increase affordable housing options. The bill defines kit homes as residential structures 800 square feet or smaller, built from prefabricated walls, floors, and roofs assembled on-site. It directs the State Building Code Council to establish these specific building codes for kit homes by December 31, 2025. This initiative is intended to provide more affordable small homes for homebuyers of modest means.

Topics ✓ HousingSupports HousingCreates building codes for kit homes (≤800 sq ft) to boost affordable housing access for modest-income buyers, directly advancing affordable housing options.95% confidence

Sub-Topics Affordable Housing Building Codes Zoning

in committee · Washington · House Jan 12, 2026

HB 1840: Authorizing middle housing in unincorporated growth areas and unincorporated urban growth areas, certain limited areas of more intensive rural development, and fully contained communities.

HB 1840 authorizes counties to allow "middle housing" (like duplexes, triplexes, or townhouses) in designated unincorporated urban growth areas, specific rural development zones, and established communities. It requires at least one middle housing unit per single-family lot in urban areas and limits these developments to four units per lot in rural zones. The bill mandates that counties apply the same zoning, permit, and environmental rules to middle housing as to single-family homes, while requiring sewer service for rural middle housing. This policy aims to increase housing density without new infrastructure, directly affecting homeowners and developers in targeted areas.

Topics ✓ HousingSupports HousingAuthorizes middle housing (duplexes, triplexes) in designated areas to increase housing density and affordability, removing zoning barriers to expand housing supply.92% confidence

Sub-Topics Affordable Housing Property Development Zoning Tags Rural Communities

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in committee · Washington · Senate Jan 12, 2026

SB 5555: Concerning zoning regulations in commercial, retail, and mixed-use areas in cities and code cities.

SB 5555 requires cities and code cities in Washington to allow housing units in existing ground-floor commercial, retail, or mixed-use buildings within specific transit-accessible areas (e.g., within 1/2 mile of light rail stops or 1/4 mile of bus rapid transit stops). It removes parking requirements, limits density restrictions (allowing up to 50% more units within existing building envelopes), and eliminates design standards for residential conversions in qualifying buildings. The bill also mandates that cities permit taller buildings using mass timber products in commercial zones and prohibits requirements like transportation studies for such conversions. These changes apply to buildings with a certificate of occupancy at least three years old, directly affecting property owners, developers, and local zoning regulations in participating jurisdictions.

Topics ✓ HousingSupports HousingRemoves zoning barriers for housing conversions in transit areas, increasing density and supply without parking requirements or design limits.95% confidence ✓ TransportationSupports TransportationBill enables housing near transit stops (light rail/bus rapid transit), removes parking requirements, and allows denser development to promote transit-oriented communities and reduce car dependency.85% confidence

Sub-Topics Zoning Public Transit Rail

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in committee · Washington · Senate Jan 12, 2026

SB 5755: Incentivizing residential development with public benefits on underutilized commercial properties.

SB 5755 incentivizes converting underutilized commercial properties into residential housing by creating a state review process for eligible projects. It requires property owners to submit detailed proposals by October 1, 2025, including location details, infrastructure needs, and affordability plans. Eligible projects must be in urban areas with at least 250 new units, avoid sensitive zones or historic sites, and score high on criteria like low-income housing, environmental features, and community benefits. High-priority projects receive streamlined permits (processed within 180 days), technical assistance, and priority for state funding to accelerate development. This directly affects developers and property owners seeking to redevelop commercial sites into mixed-income housing near transit and jobs.

Topics ✓ HousingSupports HousingIncentivizes converting commercial to residential properties with affordability requirements, directly advancing affordable housing development and low-income housing goals.95% confidence

Sub-Topics Affordable Housing Property Development Zoning

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in committee · Washington · Senate Feb 26, 2026

SB 5249: Concerning siting kit homes.

This bill allows cities and counties in Washington to permit factory-built "kit homes" (structures under 800 square feet assembled on-site) in residential zones for emergency housing. It requires local governments to adopt inspection processes ensuring these homes meet safety standards at least every five years. The bill eliminates minimum floor area requirements for single-family homes and permits kit homes in areas designated for residential use or emergency housing. It directly affects local zoning authorities, housing providers, and residents seeking temporary housing solutions.

Topics ✓ HousingSupports HousingAllows emergency housing via kit homes, removes zoning barriers to increase affordable housing supply in residential areas.95% confidence

Sub-Topics Zoning

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