# Washington — State construction defect statute of limitations and statute of repose periods

For Washington, sol — contract (years) is 6; sol — tort (years) is 3; statute of repose (years) is 6; sor trigger event is substantial completion or termination of services; discovery rule is Yes, recorded from its source on 2026-08-18.

- **State:** Washington _(our reading, not quoted from the source)_
- **SOL — contract (years):** 6 _(verified: appears in the quote below)_
- **SOL — tort (years):** 3 _(verified: appears in the quote below)_
- **Statute of repose (years):** 6 _(verified: appears in the quote below)_
- **SOR trigger event:** substantial completion or termination of services _(verified: appears in the quote below)_
- **Discovery rule:** Yes _(our reading, not quoted from the source)_
- **Statutory citation:** RCW §4.16.310 _(verified: appears in the quote below)_

## What the source says

> RCW §4.16.310 — 6-year SOR from substantial completion or termination of services. SOL 3 years for tort and 6 years for written contract from accrual or discovery. Washington applies a strong discovery rule with developed case law on envelope failures.

## Source

- https://terrapincg.com/news/construction-defect-statute-of-limitations-by-state-2026

Last verified: 2026-08-18. Review by: 2027-08-18.
Part of [State construction defect statute of limitations and statute of repose periods](https://referencesource.org/state-construction-defect-limitations-periods/).