Permit Required
Do you need a permit to install a water heater in San Diego, CA?
A plumbing permit is required to replace a water heater; standard storage water-heater swaps in a single dwelling/duplex/townhouse outside a historic district qualify for a Simple (no-plan) permit. Tankless heaters need a regular permit.
✓ Verified from official source
Source: City of San Diego DSD — Simple Permits — Verified 2026-06-26
Permit rules vary by property and change over time. This is an informational guide, not legal advice — always confirm with City of San Diego Development Services Department before starting work.
How to get the permit in San Diego
Building department
Apply online
Phone
(619) 446-5000
Code in force
2025 California Residential Code (CRC) with City of San Diego amendments (SDMC Chapter 14); effective Jan 1, 2026
Need a permit pulled? Find a licensed plumber in San Diego
Licensed plumbers near you can handle the permit and the work — compare pros on our directory.
Find a plumber in San Diego, CA →See Installing a Water Heater permit rules for other cities →