Plumbing Permit requirements across California
By Mario Bailey Last verified 2026-06-17
Requirements and size thresholds for plumbing permits vary by locality. The table below compares what each California county or city requires. Always confirm with the local office before starting.
| Locality | Permit required? | Typical threshold |
|---|---|---|
| Los Angeles | Yes | Not specified |
| Sacramento | Yes | Not specified |
| San Diego | Yes | Not specified |
| San Jose | Yes | Not specified |