Statute of Limitations for Construction Defects in Washington

Statute of Limitations for Construction Defects in Washington

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Published August 19, 2025 • Updated May 16, 2026 • By DocketMath Team

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How the limitation period applies

The controlling primary authority for Washington construction SOL of repose (Wash. Rev. Code § 4.16.310) is Wash. Rev. Code § 4.16.310.

Wash. Rev. Code § 4.16.310. All claims or causes of action as set forth in RCW 4.16.300 shall accrue, and the applicable statute of limitation shall begin to run only during the period within six years after substantial completion of construction, or during the period within six years after the termination of the services enumerated in RCW 4.16.300, whichever is later. The phrase "substantial completion of construction" shall mean the state of completion reached when an improvement upon real property may be used or occupied for its intended use. Any cause of action which has not accrued within six years after such substantial completion of construction, or within six years after such termination of services, whichever is later, shall be barred.

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DocketMath's statute-of-limitations tool can model these timelines once you identify the controlling claim type and accrual date. Use the source panel for the verified primary-source citations.

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Sources

All sources are official primary law published by app.leg.wa.gov.

Corroboration method: Single primary from app.leg.wa.gov.