Bathroom Remodelingin Lomita, CA
Bathroom remodeling in Lomita needs a permit once pipes, fixtures or circuits move, while new tile, cabinets and counters are finish work on the state's exempt list. About 79 percent of homes predate 1980, so lead-safe rules usually apply. Building and Safety at City Hall can confirm your scope and which office issues the permit.
In 1907 the W. I. Hollingsworth Company bought about seven square miles north of the Palos Verdes hills for a Dunkard colony, and by the early 1960s Torrance's annexations had left Lomita 1.87 of them. The city incorporated on June 30, 1964. What it kept is mostly older housing: the Census Bureau's 2020 to 2024 estimates count 7,904 homes, 800 built in 1939 or earlier, 496 in the 1940s and 3,176 in the 1950s and 1960s, and 54.1 percent of occupied homes are rented.
This page covers where the permit line likely falls, what sits inside the walls of a 1940s to 1960s bath, the City's report at a sale, fans and water rules, rentals and mobile home parks, and the two rules that turn on job size. Municipal Code quotes here come from the GoCodebook mirror, text as of October 4, 2026 with Ordinance 891 of June 16, 2026 included, since official Municode is JavaScript-only and our tools cannot open it. Check each rule with the City. Price tiers and phases are on our bathroom remodeling page.
Lomita Building and Safety rules that apply to bathroom work
Where bathroom remodeling permits come from in Lomita: City of Lomita Community and Economic Development Department, Building and Safety Division and Planning Division.
- Replacing finishes such as tile in a bathroom is on the state's permit-exempt list (Residential Code R105.2, 2025 text, as excerpted by the City of Albany), while replacing or rearranging pipes, valves or fixtures is not. Lomita adopts County Title 31, the 2025 California Green Building Standards Code (section 10-8.01); the County text was not read.
Sources for these rules
Do you need a permit for a bathroom remodel in Lomita?
Not for every bath job, and the City publishes no bathroom handout, so the line has to be drawn from the state model list. The 2025 Residential Code exemption list in section R105.2, as excerpted by the City of Albany, includes tile, cabinets, counter tops and painting. For plumbing it exempts only stopping leaks and clearing stoppages. Replacing or rearranging pipes, valves or fixtures is permit work, which puts a tub-to-shower conversion, a moved drain or a new circuit on the permit side and fresh tile over untouched plumbing on the other.
Lomita adopts LA County Titles 26, 30, 31 and 33 by reference, as in effect January 1, 2026 (Municipal Code sections 10-1.01, 10-7.01 and 10-8.01 and chapter 9), and we did not read the County's amendments, so the exempt list may differ in a detail.
Then comes the question of who issues the permit. The City's Building and Safety page says Lomita now runs plan check, permitting and inspections itself through the GeoCivix portal, yet the Planning page still sends by-right building permits to LA County. Call Building and Safety at City Hall at (310) 304-3788, describe the exact scope and ask which office will issue it.
What is inside the walls of a Lomita bathroom built before 1960?
Lomita's Housing Element says the streets between Pacific Coast Highway and Lomita Boulevard went up on large lots from the 1940s through the 1960s and hold many of the older units. In the Census count, 1,296 homes, 16 percent, date from before 1950. A bath in one of them has usually been redone at least once, so the original supply lines, drains and wall framing may sit behind newer tile, and nobody can say what shape they are in until the wall is open.
Lead is the other unknown. About 79 percent of Lomita's housing units, 6,235 of 7,904, were built before 1980, and EPA's Renovation, Repair and Painting rule covers paid work that disturbs paint in housing built before 1978. Indoors the exemption stops at 6 square feet of paint per room, so a gutted bath is almost certainly covered. The firm must be EPA-certified and work lead-safe, so ask for its certification number and a written containment plan before demolition starts.
- Will the subfloor beside the toilet and under the tub be opened and checked?
- What does a repair cost per foot of framing or drain line if the wall opens badly?
- Who handles the old tile and plaster dust, and how is it contained?
Selling a Lomita house: the City's property report and unpermitted bathrooms
Lomita ties a City inspection to the sale of a house. Section 11-1.59.03 of the zoning code requires a seller to order a City residential property report within three business days of signing the sale agreement. The City inspects the property, inside it with the owner's consent, and notes any apparent illegal or unpermitted construction. Under section 11-1.59.06, violations on the report must be corrected within 90 days at most, and the report expires after six months.
That matters for bathrooms because a bath added in a garage or a converted room, or a shower moved without a permit, is exactly what such an inspection can flag. If you bought a house with work you doubt, ask Building and Safety what its file shows before you list. A permitted remodel with a signed final inspection is the cleanest answer a seller can hand over.
The rule sits in the sale chapter, not the building one, so an owner who never plans to sell can miss it. We read it on the mirror, so confirm the current text and fee with the City.
Exhaust fans, vacancy sensors and water-saving fixtures in a Lomita bath
The California Energy Commission's summary of the 2025 Energy Code, in force since January 1, 2026, calls for local exhaust in every bathroom, run continuously or on demand, and at least one bathroom light on an occupancy or vacancy sensor. Lomita adopts the 2025 California codes through County titles as of January 1, 2026, so those mandatory measures should reach a permitted remodel here. Ask that the fan's duct run outdoors and appear on the plan.
State water rules may reach the job too. LA County Public Works describes SB 407 as requiring non-compliant toilets, showerheads and faucets in pre-1994 homes to be replaced when a permit is pulled. Most Lomita homes predate that year, and we could not confirm how the City applies the rule, so ask when the permit is issued.
Section 10-8.01 adopts County Title 31, the green building code, and we did not read its text. Confirm which flow limits and finish requirements plan check enforces before you pick fixtures.
Remodeling a bathroom in a Lomita rental, duplex or mobile home
Renters occupy 3,964 of Lomita's 7,326 occupied homes, 54.1 percent. About 8 percent of units, 640, sit in buildings of two to four units, and 26 percent, 2,068, in buildings of five or more. A tenant does not normally pull the permit, so the owner's signature and a written plan for the days the bath is out of service belong in the paperwork. We did not research Lomita's rental registration or inspection rules, so ask the City whether your building has any.
Mobile homes are the other large group, 544 units or about 7 percent, and the Housing Element counted 16 parks with 525 spaces in 2021. Work in a park can involve the park's own rules and the state housing department that oversees it. Ask the manager and Building and Safety who signs off before anyone orders a shower insert.
A mild coastal climate, a wet winter and what actually soaks a shower wall
NOAA's 1991 to 2020 normals for Torrance Airport, about 1.5 miles west northwest of central Lomita, show 13.64 inches of rain a year, 11.24 of it from December through March and almost none from June through August. Average highs run from 66.1 degrees in December to 78.1 in August and September, with 5.8 days a year at 90 or above. With no snow loads and little extreme heat, weather does not stress a bathroom here. Steam, splash and a failed membrane do.
A sound shower starts with a sloped pan, backer board and a single membrane that climbs the walls and wraps the curb. Before any tile goes on, the pan is filled with water and left to stand, and the result is photographed with the date. Write that test into the contract. The Safety Element says Lomita is not likely to be susceptible to landslides or liquefaction, going by its text, so ground movement is not the usual bath problem here. Leaks are.
The $35,000 curb rule, debris diversion and the paperwork behind a Lomita bath job
Two Lomita rules turn on size. Section 10-5.02 requires an owner who starts any building, addition or improvement costing more than $35,000 within two years to build or replace concrete curb, gutter and sidewalk along the lot frontage unless adequate ones exist. A refresh or midrange bath sits below that line, while a primary bath at the top of our range or a bath addition can reach it. We did not confirm how the City counts interior work, so ask.
Section 5-5.03 asks covered projects to divert at least 50 percent of construction waste by weight, with a waste management plan filed alongside the permit application. It covers alterations that increase conditioned area, volume or size. A bath that stays inside the old walls and needs only plumbing, electrical or mechanical permits is not covered, but a bath built onto the house is.
As MDG Builders, CSLB #1040337, we draw the room, file the permits and keep the schedule, while licensed plumbers, tile setters and electricians do the field work. Each firm can be asked for a license number and certificate of insurance, and our post on how general contractors use subcontractors explains who answers for what.
Bathroom photos from Lomita and nearby homes
Bathroom scenes tied to Lomita and nearby places such as Harbor City and Walteria, from opened walls and waterproofing to finished tile. Tap a photo to enlarge it.
What bathroom remodeling costs around Lomita
Our bathroom remodeling page sets regional tiers for a bath of about 35 square feet: roughly $9,000 to $18,000 for a refresh, $25,000 to $40,000 for a midrange remodel in the same layout, $50,000 to $85,000 and up for a primary bath, and $60,000 to $120,000 to add one. Three sources shape them. Remodeling magazine's 2025 Cost vs. Value report prices Los Angeles, not Lomita, at $27,143 for a midrange bath, about 89.6 percent recouped at resale, and $85,055 for an upscale one, about 42.3 percent. Thumbtack's Los Angeles page, updated July 9, 2026, gives $8,495 to $26,582, and Sweeten's Los Angeles guide, modified January 13, 2026, starts a full bath with no layout change at $25,000, $35,000 or $50,000 by finish level. We found no Lomita price survey and no published permit fee for bath work, so permit and plan check fees are separate lines in a written proposal. What moves a bath between tiers is laid out in the bathroom cost guide, and the license check guide shows how to verify any contractor on the CSLB site. Neighboring cities follow their own codes, so compare bathroom remodeling in Torrance, Redondo Beach, Carson, Gardena and Los Angeles. A bath that grows the floor plan goes on the Lomita room addition page, one inside a separate unit on the Lomita ADU page, and the Lomita area page lists every trade we cover in the city.
| 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 |
Lomita bathroom remodel questions, answered
Do I need a permit for a bathroom remodel in Lomita?
Yes once pipes, fixtures or circuits move, while tile, cabinets, counter tops and painting alone are on the state's exempt list. Lomita adopts LA County's building titles, we did not read the County's amendments, and the City's two pages disagree on who issues permits. Call Building and Safety at (310) 304-3788 and describe your scope first.
Do I need a permit for a shower remodel?
Usually, because a shower job reaches the valve, the drain or the wall behind the tile, and the state model list exempts only leak repair and stoppage clearing for plumbing. Re-grouting or re-caulking an untouched shower is different. Put the exact scope to Building and Safety before you order glass or a pan.
How much does a bathroom remodel cost in California?
For a bath of about 35 square feet, our regional tiers run roughly $9,000 to $18,000 for a refresh, $25,000 to $40,000 for a midrange remodel in the same layout and $50,000 to $85,000 and up for a primary bath. They lean on Los Angeles sources because no Lomita survey turned up, so only a written proposal sets your real price.
Can a handyman do a bathroom remodel?
Only for very small jobs. Since January 1, 2025, California lets an unlicensed person take work of $1,000 or less in labor, materials and other costs, but not when the job needs a building permit or the person hires any worker. Moving a fixture needs a permit, so check any license on CSLB's site and get a written contract before paying.
What is the difference between a bathroom remodel and a bathroom renovation?
A renovation swaps finishes and fixtures where they already sit, while a remodel moves the layout or the systems inside the wall. The difference matters for permits, because new tile, cabinets and counters are exempt finish work and moved fixtures, new pipe and new circuits are not. When you call Building and Safety, say which one you mean and describe the scope in plain terms.
How long does a bathroom remodeling take?
Most of the calendar is design and permits, not construction. After 2 to 6 weeks of design and selections and whatever the permit path takes, demolition and rough plumbing run 3 to 7 days, waterproofing and curing 3 to 5 days, tile, vanity and fixtures 1 to 2 weeks, and glass and the final another 1 to 2 weeks. Shower glass and tile lead times cause most delays.
Where do you shower during a bathroom remodel?
At a gym, a relative's house or a second bathroom if the home has one. The room is out of service from demolition to the final inspection, which in a typical job means several weeks. In a rental, give the tenant water-off dates in writing and say who supplies the alternative. With 54.1 percent of Lomita's occupied homes rented, this comes up often.
Is remodeling a bathroom worth it?
A midrange bath recovers most of its cost when the house sells, and an upscale one recovers much less. Remodeling magazine's 2025 Los Angeles report shows about 89.6 percent for midrange work and 42.3 percent for upscale. Lomita's median owner-occupied value is $831,500 in the 2020 to 2024 estimates, and no local resale study turned up, so treat the percentages as regional guides.
Does adding a bathroom increase property taxes?
Only on the new part. The Board of Equalization says new construction is assessed at the market value it adds, not what it cost, and the rest of the property keeps its existing base value. Whether a given remodel counts as new construction is the assessor's call, so ask the county assessor how your project would be treated.
Tell us about your Lomita bathroom
Tell us which side of Pacific Coast Highway you live on, roughly when the house was built, whether you own or rent and how many baths it has, and the first visit starts from there.