San Francisco / Bathroom remodeling
Bathroom Remodeling in San Francisco
45% of San Francisco homes were built before 1940. The bathroom is where that shows first.
Nearly half of San Francisco homes predate 1940, and most are flats, condos and apartments. We remodel bathrooms here with the right DBI permit path, trade permits and old-building issues planned before the tile comes off.
SAN FRANCISCO AT A GLANCE
What is different about remodeling in San Francisco.
San Francisco is one city and county with its own building department, its own electricity provider and a housing stock that is mostly rented, mostly multifamily and very old. All of it shapes a bathroom project.
- 830,235
- residents, Census ACS 2020 to 2024
- 45%
- of homes built before 1940
- 62%
- of households rent
Permits
Department of Building Inspection
Same-layout kitchen and bath permits are filed online through PermitSF. Projects with plans are reviewed over the counter at the Permit Center, 49 South Van Ness, 2nd floor.
(628) 652-3200Kitchen and bath permit ↗Inspections
Trade finals come first
Inspections are requested through the PermitSF portal once a permit is issued. The building final waits until the separate electrical and plumbing permits pass their finals.
Interior remodel permit steps ↗Energy
PG&E wires, CleanPowerSF electricity
CleanPowerSF pays up to $1,200 in bill credits for a heat pump water heater, at $50 a month, for customers on an electrification rate such as EV2-A or E-ELEC.
(415) 554-0773Electrify Your Home ↗WHAT WE PLAN IN A SAN FRANCISCO BATHROOM
Same layout, or a new one?
Keeping the walls where they are lets most legally permitted bathrooms in single-family homes and older apartment units go through PermitSF online. Removing or moving walls, or changing the layout, means drawn plans and over-the-counter review at the Permit Center. We decide the path at the site visit.
Same-layout remodel
No walls removed or relocated, in a legally permitted bathroom: a registered contractor can apply online through PermitSF.
New layout or new bathroom
Plans are required when the layout changes or walls come out. New bathrooms are eligible for over-the-counter review, with water use forms.
Flats, condos and apartments
Units in R-2 buildings built before 1991 qualify for the online path. Owners there must hire contractors for electrical and plumbing.
Old wiring
Most San Francisco homes built before 1950 used knob and tube wiring. Open walls are the moment to replace it under its own electrical permit.
Lead-safe work
Paint in buildings completed before 1979 is presumed to contain lead. Neighbors get notice at least 3 days before work starts.
Water heater switch
A heat pump water heater earns up to $1,200 in CleanPowerSF bill credits. We add the 240-volt circuit in-house.
ONLINE OR OVER THE COUNTER
Which permit path your bathroom takes.
PermitSF issues same-layout kitchen and bath permits online. Anything that changes the layout goes to over-the-counter review with plans.
Online through PermitSF when
- No walls are removed or relocated
- The bathroom was legally permitted
- The building is an R-3 home or an R-2 unit built before 1991
- A registered contractor or the owner applies
Plans and counter review when
- The layout or floor plan changes
- Walls are removed or structure changes
- An unpermitted bathroom is being legalized
- The building is an R-2 built after 1991
Separate permits to file
- Electrical permit for new circuits, fans and lighting
- Plumbing permit for fixtures and drains
- Water use forms if fixtures are added
- Street space permit if a debris box or scaffold sits in the street
Planning the work
How a San Francisco bathroom project runs.
Site visit
Free visit. Layout, building type, permit history, wiring, plumbing and the water heater.
Permit path
Online PermitSF permit if the layout stays, plans and over-the-counter review if it changes. Electrical and plumbing permits filed separately.
Demolition and rough-in
Lead-safe setup and notice where needed, then plumbing, electrical and waterproofing inspected before tile.
Finishes and final
Tile and fixtures, electrical and plumbing finals first, then the building final the city schedules after them.
WHAT TRIPS UP SAN FRANCISCO REMODELS
Problems San Francisco homeowners run into, and how we plan around them.
From local reporting and the city's own permit pages.
A simple permit turns into months of visits and fees.
Same-layout bathrooms are filed online through PermitSF, and plans for layout changes are complete before the counter visit.
Planning finds that a previous owner split the house into illegal units, and the remodel stalls.
Permit history is checked before design, so a legalization question is answered first, not halfway through.
An insurer flags knob and tube wiring after the remodel.
Old circuits in the bathroom walls are replaced under the electrical permit while the walls are open.
The building final cannot be booked because a trade final is missing.
Electrical and plumbing finals are scheduled first, since the city requires them before the remodel final.
Lead dust spreads to neighbors in an older building.
Pre-1979 buildings get lead-safe containment and the required 3-day notice to affected parties.
Sources: Mission Local, February 2025; San Francisco Chronicle (Bernal Heights remodel); ABC7 News, March 2025; sf.gov permit and lead-safety pages.
CLEANPOWERSF AND BAYREN
Credits that fit a bathroom project.
When a bathroom remodel replaces the water heater or exposes old wiring, these programs can cover part of it. DBI permit compliance is a condition for the CleanPowerSF credits.
CleanPowerSF
Heat pump water heater
up to $1,200
Paid as $50 a month for 24 months. Requires an electrification rate such as EV2-A or E-ELEC.
CleanPowerSF
CARE or FERA bonus
$600 more
12 extra months of credits for enrolled households, applied automatically.
CleanPowerSF
Gas meter removed
$300 more
For a full electrification, meter removal on or after April 14, 2026.
BayREN
Knob and tube remediation
up to $2,000
EASE Home program, households at or under 120% of area median income; $300 to certify wiring is inactive.
Amounts from cleanpowersf.org and bayren.org, October 2026. Program terms can change.
Do I need a permit to remodel a bathroom in San Francisco?
Yes. San Francisco requires a permit before renovating a bathroom or replacing its fixtures, and electrical and plumbing work need separate permits. Final inspection for the remodel cannot be scheduled until the electrical and plumbing permits pass their own finals.
Can I get a bathroom remodel permit online in San Francisco?
Yes, if no walls are removed or relocated, the bathroom was legally permitted, and the building is an R-3 home or a unit in an R-2 apartment building built before 1991. Applications go through the PermitSF portal, and since September 14, 2026 households in multifamily buildings can use this express path.
How long does an over-the-counter permit take in San Francisco?
Most over-the-counter permits are now issued within two days, according to DBI's 2025 year-end review. Submitting in person at the Permit Center, 49 South Van Ness, can take 2 to 8 hours, and plans that need more than one hour of review go to in-house review.
When does a San Francisco bathroom remodel need plans?
When the layout or floor plan changes, or when walls are removed. Plans are also needed for structural work and for new laundry hookups. A same-layout remodel of a legally permitted bathroom does not need drawn plans.
Is knob and tube wiring a problem in a San Francisco remodel?
Yes, mostly for insurance. Most San Francisco homes built before 1950 used knob and tube wiring, and ABC7 reported in March 2025 that insurers are declining or canceling policies over it. A bathroom remodel with open walls is the easiest time to replace the circuits in that part of the house.
Do I need lead-safe practices for a bathroom remodel in San Francisco?
Yes, in buildings completed before 1979. San Francisco presumes that older paint contains lead unless a certified inspector proves otherwise, affected neighbors must be notified at least 3 days before work begins, and renovators need EPA Lead-Safe certification.
