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Bill

SB 5901

Concerning co-living housing.

2023-2024 Regular Session Introduced by Noel Frame and 7 co-sponsors

SB 5901 establishes regulatory framework for co-living housing in Washington to expand affordable housing supply through shared multi-occupant residential arrangements.

Senate Rules "X" file.
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Bill Summary · SB 5901

Legislative bill overview

SB 5901 addresses co-living housing arrangements in Washington State by establishing regulatory frameworks, zoning allowances, or standards for shared-living residential units where multiple unrelated individuals occupy a single dwelling. The bill aims to address housing affordability and supply by recognizing co-living as a legitimate housing model beyond traditional single-family or multi-unit apartments.

Why is this important

Washington faces significant housing shortages and affordability crises in many regions. Co-living arrangements can increase housing supply density and reduce per-person housing costs, potentially making homeownership or rental stability more accessible. However, this requires clarifying legal status, building codes, and zoning classifications that traditionally limited such arrangements.

Potential points of contention

  • Local zoning conflicts: Municipalities may resist density changes or view co-living as incompatible with single-family residential character, creating implementation barriers
  • Building code and safety standards: Establishing appropriate occupancy limits, emergency egress, and utility infrastructure for shared units without creating overcrowding concerns
  • Neighbor opposition: Existing homeowners may oppose zoning changes permitting co-living in their neighborhoods due to density, parking, and traffic concerns
  • Affordability guarantees: Without rent controls or income restrictions, co-living developments may serve moderate-income residents rather than those most in need

Compiled from official sources — confirm details with the bill’s official record.

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