Pool Permit requirements across Washington
By Mario Bailey Last verified 2026-06-17
Requirements and size thresholds for pool permits vary by locality. The table below compares what each Washington county or city requires. Always confirm with the local office before starting.
What to know about pool permits in Washington
Pool permits in Virginia generally apply once a pool passes a size or depth threshold, and they often involve barrier and electrical safety requirements. Costs depend on the pool type and your locality. A licensed contractor helps ensure the pool and its safety features meet code.
| Locality | Permit required? | Typical threshold |
|---|---|---|
| Bellevue | Conditional | swimming pools over 24 inches deep require a permit with plan review; above-ground pools 24 inches or less may be exempt |
| King County | Conditional | prefabricated above-ground pools less than 24 inches deep and not exceeding 5000 gallons are exempt; all other pools require a building permit in unincorporated King County |
| Seattle | Yes | Not specified |
| Tacoma | Conditional | prefabricated above-ground pools less than 24 inches deep and not greater than 5000 gallons are exempt; all other pools require a building permit |