Plumbing Permits: San Ramon vs Walnut Creek

Plumbing permits in San Ramon are issued through Contra Costa County Building Inspection Division and governed by the 2022 California Plumbing Code. Permits are required for water heater replacements, repiping, sewer lateral work, gas line modifications, backflow prevention devices, and fixture additions. Like-for-like fixture swaps (faucets, toilets in existing location) generally do not require permits, but water heater and gas work always do. EBMUD or DSRSD serves as the water provider depending on location, and Central Contra Costa Sanitary District (Central San) handles sewer permits.

Walnut Creek requires plumbing permits for most plumbing work including water heater replacement, repiping, sewer lateral repairs, and fixture additions. The California Plumbing Code (CPC) governs installations, and EBMUD sewer lateral compliance applies at property transfer.