Bathroom Remodelingin Santa Monica, CA
Bathroom remodeling in Santa Monica starts at the Permit Services Center, where a single-family bath that stays under the City's plumbing, electrical and mechanical thresholds gets Same-Day Review. If tenants live in the building, SMMC 8.100 can require an approved construction means and method plan before any permit issues.
Santa Monica's bathrooms sit in an unusual housing market. The Census Bureau's 2024 American Community Survey shows 74.6 percent of households renting, 63.7 percent of homes in buildings of five or more units and only 20.7 percent in detached houses. About 71.7 percent of all homes were built before 1980, and roughly one in seven dates to 1939 or earlier, from the first blocks of the town founded in 1875 to the small 1940s cottages that Wikipedia's neighborhood page says Sunset Park built for Douglas Aircraft workers.
That makes a bathroom job here a job inside a building where someone else lives, a building with a rent control history, or a bungalow that has been retiled more than once. This page covers the Permit Services Center's review tracks, tenant plans, rent control, what old walls hide, historic districts and the City's work hours. Price tiers and the phase timeline for a bathroom renovation are on our bathroom remodeling page, and the other trades we run here are on the Santa Monica service page.
What Santa Monica's permit tables and tenant code say about bathrooms
Where bathroom remodeling permits come from in Santa Monica: City of Santa Monica Community Development Department, Building and Safety Division.
- A single-family bath remodel is Same-Day Plan Review when it stays under the mechanical, electrical and plumbing thresholds, which the City publishes in a PDF that could not be read here. The plumbing exemption in SMMC 8.08.050(e) covers only repairs and removing and reinstalling water closets that do not replace or rearrange valves, pipes or fixtures.
- When a bath remodel in a rental building could affect a tenant's habitability, such as shutting off water or exposing lead or asbestos materials, SMMC 8.100.010 and 8.100.080 require the means and method plan and certified abatement before the City issues the permit.
- The City's remodel table says Public Works water neutrality rules apply when plumbing fixtures increase, so adding a second sink, tub or shower in a bath remodel is reviewed for water use as well as for the plumbing permit.
Bathroom remodeling in a Santa Monica apartment with tenants: what SMMC 8.100 requires
Santa Monica asks one question on a permit application for any building with dwelling units: does anyone live there? If tenants do, and the Building Officer finds the work could affect habitability, SMMC Chapter 8.100 requires an approved construction means and method plan before the permit issues. The Building Officer may also stop construction until the chapter is met.
A bathroom trips that question easily, because the water goes off and the walls come open. The plan can bring a relocation plan, notices that are hand-delivered with proof of service, sent by certified mail or delivered electronically, and security posted with the City. If the work will last 30 days or more, the owner posts a City-prepared 30 by 40 inch complaint sign, and the owner stays responsible for violations even when a contractor causes them.
We build the schedule around those duties: which days the toilet and shower are out, who is told and how, and where the tenant washes in between. Condominium boards and apartment managers often add rules of their own, so ask about work hours, elevator padding and insurance certificates before any trade is booked.
Does rent control change a bathroom upgrade in a Santa Monica rental?
Santa Monica's rent control law has applied since April 10, 1979 to most residential rental buildings built before that date and to some built later. The City's Rent Control fact sheet adds that single-family homes and condominiums can be covered too, depending on the unit's history, so owners, tenants and buyers should learn which category a unit falls in before the first wall opens.
The same fact sheet says rent increase petitions are usually based on completed or planned capital improvements, on lack of fair return or on higher operating expenses, and that owners have been able to rent vacant units to new tenants at market rates since January 1, 1999. We read that as a reason to keep the permit, the invoices and the inspection sign-offs from day one. We are a contractor, not the Rent Control Board, and we do not predict what a petition will allow; the fact sheet we read is dated January 2023, so confirm current rules with the Board at City Hall.
If you are buying a duplex or fourplex, ask which units are controlled and whether any bathroom was rebuilt under a permit. The City's permit record is where a past remodel should show up.
Bathroom remodeling permits in Santa Monica: Same-Day, Minor and Medium Review
The City sorts residential plan review into Same-Day, Minor, Medium and Single-Family tracks. A single-family bath remodel is Same-Day Plan Review when it stays under the mechanical, electrical and plumbing thresholds, which the City publishes in a separate PDF we could not open, so we ask the counter which side of that line a given bath falls on. Structural interior remodels under 2,500 square feet go to Minor Review, with a five-day first review, and larger ones to Medium Review at three weeks. The City says reviews are running behind its own estimates.
Everything goes through the paperless Electronic Plan Review system before anyone visits the Permit Services Center, which is open 8:00 a.m. to 3:00 p.m. Monday through Thursday. The plumbing exemption in SMMC 8.08.050(e) covers only leak repairs, clearing stoppages and removing and reinstalling a toilet without replacing or rearranging valves, pipes or fixtures.
Adding a sink, tub or shower brings Public Works water neutrality review, so a second vanity in a primary bath is a permit conversation and a tub-to-shower swap that keeps the fixture count is not. A project valued at $50,000 or more needs a Construction and Demolition Waste Management Plan and a security deposit, a line a primary suite can cross.
What is behind the tile in a 1940s Santa Monica bungalow or a 1960s apartment bath?
Nobody knows until the wall is open, and in Santa Monica that wall can belong to several eras. The census data shows 11.4 percent of homes built in the 1940s and 15.7 percent in the 1960s. Wikipedia's neighborhood page says Midtown's early Craftsman and Victorian houses were largely replaced by 1940s bungalows and 1960s multi-unit buildings, which is why one block can hold a plaster bath and a drywall bath fifty feet apart.
The honest way to quote is with unit prices. A rebuilt shower gets a sloped pan, backer board and a continuous membrane turned up the walls and over the curb, and the pan is flood tested before tile covers it. Soft framing around the tub, a rotted subfloor at the toilet flange or a corroded drain is replaced at rates written into the proposal, so a discovery changes the total by a known amount instead of starting an argument.
Many pre-1960 houses here sit on raised floors, and the City's seismic chapter encourages owners to brace and bolt cripple walls. If the bathroom floor is open anyway, ask your contractor to look at what holds it up.
Lead, mold and asbestos in a Santa Monica bathroom remodel, and the flood test before tile
SMMC 8.100.080 makes the owner responsible for having mold, asbestos and similar materials handled and abated by certified experts during construction, demolition or modification, with proof that the site is safe. The City may hire qualified experts at the owner's expense to check compliance. For homes built before 1978, the federal EPA lead-safe renovation rule requires certified firms for paid work that disturbs painted surfaces.
Ask before demolition how dust is contained, how debris leaves the building and what happens if the wall shows black growth or old mastic. With 71.7 percent of homes built before 1980, those are routine questions here and not signs of a problem contractor.
Moisture is the other enemy. Santa Monica averages 13.45 inches of rain a year, and 82 percent of it falls December through March, so a bath fan that runs after showers matters. The 2025 Energy Code that the City applies to submittals from January 1, 2026 calls for local mechanical exhaust in bathrooms and a vacancy sensor on at least one light, according to the California Energy Commission's summary of its mandatory measures.
Bathroom renovation in a Third Street, 11th Street or 4th Street historic home
Santa Monica has five historic districts: Third Street Neighborhood (1990), Bay Street Craftsman Cluster (2000), San Vicente Boulevard Courtyard Apartments (2015), 11th Street Bungalow (2019) and 4th Street Corner (2019), on top of a landmark list the City numbers through 143. Work on a landmark or a contributing building generally needs a certificate of appropriateness from the Landmarks Commission, and no City department may issue a permit for it without one unless the chapter exempts the work.
The Third Street district is more forgiving inside. SMMC 9.58.020 says interior alterations there need only a certificate of exemption when a building permit applies. The trouble is on the outside: a new bath window, a relocated vent or a new exhaust duct through a street wall changes the exterior, so raise it before drawings are done.
For work that does need a certificate, the City waives the certificate and administrative approval fees, and the State Historical Building Code applies to alterations of landmarks and contributing buildings under SMMC 9.56.270.
Construction hours and who does what on a Santa Monica bathroom job
SMMC 4.12.110 allows construction from 8:00 a.m. to 6:00 p.m. Monday through Friday and 9:00 a.m. to 5:00 p.m. on Saturday, with no work on Sundays or on eight listed holidays. A permit for off-hours work can be issued in the public interest, with notice to everyone within 500 feet. Every permitted site needs a bilingual English and Spanish sign with the work hours, the City's violation phone numbers and the permit number, under SMMC 4.12.120.
In a one-bathroom apartment those hours are the calendar. Rough plumbing inspection and the flood test come first, and nothing closes up until both are done. Plan where the household showers for the weeks the room is out.
As MDG Builders, CSLB #1040337, we design, permit and supervise, and licensed specialty subcontractors do the plumbing, tile, electrical and glass work. You can ask for each subcontractor's license number and certificate of insurance, and our posts on how general contractors use subcontractors and checking a contractor license show how.
Bathroom details from Santa Monica remodels
Three views of the waterproofing, tile and fixtures that sit behind a Santa Monica bathroom remodel. Tap a photo to enlarge it.
What bathroom remodeling costs around Santa Monica
Regional ranges on our bathroom remodeling page run about $9,000 to $18,000 for a refresh, $25,000 to $40,000 for a mid-range remodel with the layout unchanged and $50,000 to $85,000 and up for a primary bath. They lean on Remodeling magazine's 2025 Cost vs. Value report, which prices a midrange bath at $27,143 and an upscale one at $85,055 for the Los Angeles area, and we print no Santa Monica permit fee because we found none. Our bathroom cost guide compares the sources. A bath often shares a project with other rooms, so see kitchen remodeling in Los Angeles, flooring installation in Los Angeles, ADU construction in Santa Monica and window replacement in Santa Monica. Other cities use other rules, as the Los Angeles, Glendale and Pasadena bathroom pages show, and if the job grows into new floor area, see a room addition in Santa Monica.
| What it covers | Typical range |
|---|---|
| Refresh in the same layout: new vanity, toilet, fixtures, lighting, paint, limited tile | $9,000 to $18,000 |
| Mid-range full remodel in the same layout: new shower or tub, tile, vanity, fixtures, lighting and fan | $25,000 to $40,000 |
| Upscale or primary bath: stone, custom glass, freestanding tub, double vanity, heated floor | $50,000 to $85,000 and up |
| Adding a new bathroom | $60,000 to $120,000 |
Other work we manage in Santa Monica
Questions about bathroom remodels in Santa Monica homes and rentals
Do I need a permit for a bathroom remodel in Santa Monica?
Usually yes, once plumbing, electrical or framing changes. The City lists a single-family bath remodel as Same-Day Plan Review when it stays under its mechanical, electrical and plumbing thresholds. The municipal code exempts only leak repairs and reinstalling a toilet without replacing pipes or fixtures. Ask the Permit Services Center about your specific scope, and expect a tenant plan if renters live in the building.
Can I use my bathroom during the remodel?
Not while the fixtures are out, so plan the days in advance. In a building with tenants, SMMC 8.100 can require a means and method plan, tenant notices and sometimes a relocation plan covering that gap. In an owner-occupied home, line up a second bathroom or a neighbor, gym or relative arrangement before demolition, and ask the contractor to list the days water will be shut off.
How much does a bathroom remodel cost in Santa Monica?
We found no Santa Monica study, so we use regional ranges: about $9,000 to $18,000 for a refresh, $25,000 to $40,000 for a mid-range remodel and $50,000 to $85,000 and up for a primary bath. Older walls, rotted framing, a moved drain and tenant logistics move the number. Our written proposal, not a range, is the real price.
How long does it take to remodel a bathroom?
Allow several weeks for the build once permits are issued, with plan review on top. A Same-Day Review job can be permitted at once, a Minor Review job takes a five-day first review and a Medium Review job three weeks, and the City says all reviews run late. Tile, glass and fixture lead times set the rest, and Santa Monica's work hours stretch the calendar.
Does rent control limit a bathroom remodel in a Santa Monica rental?
Rent control does not ban remodels, but it shapes the paperwork. The law has applied since April 10, 1979 to most rental buildings built before then, and the City's fact sheet says owners usually seek rent increases for capital improvements through petitions. Keep permits and invoices, and ask the Rent Control Board at City Hall how your unit is classified before you spend money.
Do I need a general contractor for a bathroom remodel?
For work over $1,000 in California you need a licensed contractor, and a bathroom usually involves plumbing, electrical, tile and drywall trades. A general contractor coordinates them and handles the permit. Santa Monica also asks a contractor pulling a permit for a current City business license, so confirm both the CSLB license and the City registration.
What questions to ask bathroom remodeling companies before hiring?
Ask who pulls the permit, who the subcontractors are and for their licenses and insurance certificates. Ask how demolition dust is contained, what the unit price is for rotted framing, how the shower pan is flood tested and what the deposit is: California caps it at $1,000 or 10 percent, whichever is less. In a rental, ask who writes the tenant plan.
Is a bathroom renovation in a Santa Monica historic district different?
Inside, often not much. In the Third Street Neighborhood district, interior alterations need only a certificate of exemption when a building permit applies. Exterior changes are different: a new window, vent or duct through a street wall can need administrative approval or a certificate of appropriateness. Ask Santa Monica Planning whether your address sits in one of the five historic districts before drawing.
Tell us about your Santa Monica bathroom
Send the neighborhood, the year the building went up, whether anyone rents it and how many bathrooms it has, and we will plan the first visit around that.