Do you need a permit to replace a water heater in San Diego?
Yes. San Diego requires a permit to replace a water heater1.
On this page
- Which permits you need
- Limits and conditions in San Diego's rule
- Zoning rules: separate from the building permit
- What to submit
- Who can apply
- Water heater permit fees in San Diego
- Inspections
- Review time
- Special areas and extra reviews
- California law that applies
- Who to ask
- Water heater permit rules in other cities
- Sources
Yes
San Diego's rule“No plumbing system, or portion of a plumbing system, shall be installed within or on any structure or premises, nor shall any alteration, addition, or replacement be made in any existing plumbing system unless a Plumbing/Mechanical Permit has been obtained for the work except as exempted in Section 129.0403.”1
City of San Diego, San Diego Municipal Code (docs.sandiego.gov, Office of the City Clerk), §129.0402(a)
Where San Diego names water heaters“Water heater replacements, except tankless types…”2
City of San Diego, Development Services Department, Simple Permits > Plumbing
Which permits you need
| Permit | Required when | The city’s wording |
|---|---|---|
| Plumbing permit | Water heater replacement (Simple Permit, except tankless) | Water heater replacements, except tankless types…2 |
Limits and conditions in San Diego's rule
Each limit sits next to the sentence it comes from; the conditions in that sentence are part of the rule.
| Rule | Value | The city’s wording |
|---|---|---|
| Like-for-like replacement exempt? | No | No plumbing system, or portion of a plumbing system, shall be installed within or on any structure or premises, nor shall any alteration, addition, or replacement be made in any existing plumbing system unless a Plumbing/Mechanical Permit has been obtained for the work except as exempted in Section 129.0403.1 |
Zoning rules: separate from the building permit
A project can be exempt from one and still need the other (zoning vs building permits).
| Zoning rule | Value | The city’s wording |
|---|---|---|
| Side and rear setback | Water heaters not in required side/rear yards unless SDMC §131.0461(a)(5) is met | Plumbing and Mechanical equipment, including water heaters, washing machines, air conditioner units and pool equipment, shall not be installed in required side or rear yards of Residential Zones unless they comply with SDMC §131.0461(a)(5).3 |
What to submit
- Owner-builders upload Form DS-30422
Who can apply
- Homeowners, property owners and licensed contractors (Simple Permit)2
- Plumbing permits issued to licensed contractors or property owners/lessees1
Water heater permit fees in San Diego
Fee lines as San Diego's schedule states them. A minimum or base fee is not the whole price when the line says the fee grows with project value.
| Fee | Type | As the schedule states it |
|---|---|---|
| Water Heater (Table 3B Plumbing Fee Schedule, per item) | Flat fee | $122.97 each3 |
All of San Diego's fee lines are on the San Diego permit page.
Inspections
Review time
2 business days2. This is the department's published figure, not a guarantee.
Special areas and extra reviews
- Historic properties do not qualify for Simple Permits3
California law that applies
- State rules on which work needs a permit in California
- Homeowners doing their own work in California
- Contractor licensing in California
Who to ask
City of San Diego Development Services Department5
Building permits
- Website
- sandiego.gov5
- Apply online
- sandiego.gov6
- Phone
- (619) 446-50007
- Address
- 7650 Mission Valley Road, MS# DSD-1A, San Diego, CA 921088
- Hours
- Mon-Fri 7 a.m.-4 p.m. (in-person services closed 11:30 a.m.-12:30 p.m.)8
- Inspections
- 858-581-7111 (24/7 automated line) or online4
Water heater permit rules in other cities
Rules differ from city to city. Compare San Diego with 18 other cities on the national water heater permit guide, or go straight to one:
- New York City, NY
- Los Angeles, CA
- Chicago, IL
- Phoenix, AZ
- San Antonio, TX
- Dallas, TX
- Jacksonville, FL
- Fort Worth, TX
- San Jose, CA
- Charlotte, NC
- Columbus, OH
- Indianapolis, IN
- San Francisco, CA
- Seattle, WA
- Denver, CO
- Oklahoma City, OK
- Philadelphia, PA
- Austin, TX
Sources
- SDMC Chapter 12, Article 9, Division 4: Plumbing/Mechanical Permit ProceduresCity of San Diego, San Diego Municipal Code (docs.sandiego.gov, Office of the City Clerk)Revised May 2020Checked November 7, 2026
- Simple PermitsCity of San Diego, Development Services DepartmentChecked November 7, 2026
- Information Bulletin 103: Fee Schedule for Mechanical, Electrical, Plumbing/Gas PermitsCity of San Diego, Development Services DepartmentRevised May 2026Checked November 6, 2026
- InspectionsCity of San Diego, Development Services DepartmentChecked November 7, 2026
- About UsCity of San Diego, Development Services DepartmentChecked November 7, 2026
- Information Bulletin 120: Project InspectionsCity of San Diego, Development Services DepartmentRevised October 2025Checked November 7, 2026
- Contact UsCity of San Diego, Development Services DepartmentChecked November 6, 2026
- Locations and HoursCity of San Diego, Development Services DepartmentChecked November 6, 2026