Patio Permit requirements across Washington
By Mario Bailey Last verified 2026-06-17
Requirements and size thresholds for patio permits vary by locality. The table below compares what each Washington county or city requires. Always confirm with the local office before starting.
| Locality | Permit required? | Typical threshold |
|---|---|---|
| Bellevue | Not confirmed | Not specified |
| King County | Not confirmed | Not specified |
| Seattle | No | Not specified |
| Tacoma | Not confirmed | Not specified |