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SB 5559

Concerning restraint or isolation of students in public schools and educational programs.

2023-2024 Regular Session Introduced by Sam Hunt and 5 co-sponsors

Requires GMA-planning cities to adopt streamlined, clear, objective unit-lot subdivision procedures, speeding approvals while notifying nearby owners and buyers.

By resolution, reintroduced and retained in present status.
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Bill Summary · SB 5559

Summary — SB 5559 (2025): Streamlining the subdivision process inside urban growth areas

Status: Chapter 271, 2025 Laws. Governor signed 5/13/2025. Effective date: 7/27/2025.
Primary change: Amends RCW 58.17.020 and 58.17.060.

Purpose / intent

SB 5559 is intended to streamline and standardize the administrative approval of "unit lot" subdivisions in cities and towns that plan under the Growth Management Act (GMA), by requiring those jurisdictions to adopt specific procedures and minimum requirements that speed processing while preserving applicable health, safety, building-code and environmental review.

Key provisions

  • Requires cities and towns located within counties planning under the GMA to adopt procedures for unit lot subdivision and to integrate those procedures with the underlying residential development review to the greatest extent feasible.
  • Statutory edits (RCW 58.17.020) add/clarify definitions:
    • "Parent lot", "unit lot", and "unit lot subdivision" (explicitly applied to residential development).
    • "Clear and objective design and development standards" must be ascertainable by measurable written/graphic criteria and be knowable to the permit applicant, public, and officials prior to submittal.
  • Minimum procedural requirements for unit lot subdivision:
    • Prominent informational notes must be placed on the subdivision plat and recorded with the county. The plat notes must state that:
    • approval of the design/layout was granted based on detailed review (with permit/file reference);
    • subsequent modifications must not create/increase nonconformity of the parent lot and must conform to the approved project or the standards in effect when vested;
    • repair/reconstruction after damage must conform to the approved project or standards in effect when the repair permit vests;
    • additional development on individual unit lots may be limited by application of standards to the parent lot.
    • No public predecision meeting or hearing and no design review beyond administrative design review (exceptions for properties subject to state law, e.g., shorelines).
    • Procedures must apply only clear and objective standards.
    • Unit lot subdivision review is subject to the statutory maximum time periods for local government action unless extended by project-specific mutual agreement.
    • Cities must notify community and property owners within 250 feet of a unit lot how to submit written comments to the administrative decision maker.
  • Purchaser notice: By June 30, 2026, unit lot subdivisions must require notification to purchasers of their legal status as described in law.
  • Implementation deadlines:
    • Cities/towns required to submit their next comprehensive plan update in 2027 must incorporate these procedures in that update.
    • All other affected cities/towns must implement the requirements within two years of the bill’s effective date (i.e., by 7/27/2027).
    • After implementation, a city/town may not refuse to accept/process an application for unit lot subdivision solely because it has not completed adoption of procedures.
  • The bill does not prohibit application of public health, safety, building-code, or environmental permits to projects and does not require authorization of development where other laws or regulations prohibit it.
  • No state appropriation included. A fiscal note was requested.

Who is affected

  • Cities and towns that plan under the GMA (must adopt procedures).
  • Residential developers using unit lot subdivision (process and notice requirements; potential faster administrative review).
  • Purchasers of unit lots (required to be notified of legal status).
  • Nearby property owners (250-foot notice of comment procedures).
  • Counties (county auditor records plats; may need to process recorded notes).

Legislative / procedural notes

  • Passed both chambers with unanimous or near-unanimous votes (Senate 48-0; House 95-0). Delivered to governor 4/24/2025; signed 5/13/2025. Chaptered as law and effective 7/27/2025.

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

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