Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
A full kitchen remodel in Lomita almost always requires permits — usually three separate ones (building, plumbing, electrical) if you're moving walls, relocating plumbing fixtures, adding circuits, or venting a range hood to the exterior. Cosmetic-only work (cabinets, countertops, paint, same-location appliance swap) does not.
Lomita, unlike some smaller Bay Area jurisdictions that have adopted streamlined kitchen-remodel tracks, applies standard Title 24 and CBC requirements to kitchen work — and enforces them consistently. The City of Lomita Building Department requires separate plumbing and electrical permits alongside the main building permit for any work that crosses trade lines, which nearly all kitchen remodels do. A critical Lomita-specific detail: the city sits in coastal Sonoma County with some parcels in fire zones (check your APN and parcel map against the Cal Fire SRA boundary), and kitchens in those zones trigger additional mechanical inspection for range-hood termination and clearances. Even if you're not in a fire zone, Lomita's plan-review process does not offer over-the-counter processing for kitchen permits — all plans go to a full review cycle, typically 3–6 weeks. The city also enforces the two-circuit rule (IRC E3702: two separate 20-amp small-appliance branch circuits dedicated to counter receptacles) strictly on plan check, and missing this detail is the #1 resubmission reason locally. Lead-paint disclosure (Lemars) is required on all pre-1978 homes in Lomita, and many kitchen remodels trigger that.

What happens if you skip the permit (and you needed one)

Lomita full kitchen remodels — the key details

The Lomita Building Department enforces California Building Code (CBC), which adopts the International Residential Code (IRC). For kitchens, the three most critical sections are IRC E3702 (small-appliance branch circuits), IRC P2722 (kitchen sink drainage and trap-arm venting), and IRC G2406 (gas appliance connections). IRC E3702 requires two separate 20-amp circuits dedicated solely to kitchen counter receptacles — not shared with other areas, not serving the refrigerator, not connected to lighting. This rule exists because kitchen counters are high-load, high-moisture spaces where nuisance tripping and shock hazard are real. Lomita's electrical examiners will reject any kitchen plan that doesn't show these two circuits explicitly labeled and separated on the panel schedule. The city does not grant exceptions for 'small kitchens' or 'light use.' If your kitchen has counter receptacles, you need two circuits, period.

Plumbing relocations are the second major trigger. IRC P2722 specifies that a kitchen sink must have a trap and vent. If you're moving the sink — even 2 feet laterally — the trap arm, cleanout, and vent routing must be shown on your plumbing plan. Many homeowners assume moving a sink 'a little' avoids permitting; Lomita does not make that distinction. The city's plumbing inspector will verify the trap-arm slope (1/4 inch per foot minimum, per IRC P3105), the vent rise (minimum 6 inches above the flood rim), and the connection to the main vent stack. Undersized drain lines or improper venting are common defects found in pre-1995 kitchens, and Lomita's inspectors catch these on rough-plumbing inspection before drywall closes. Plan-check rejection for missing vent detail typically adds 2–3 weeks to your timeline.

Electrical and plumbing permits in Lomita are issued separately from the building permit. You apply for the main building permit first (which includes structural changes, window/door relocations, and range-hood venting), then separately pull plumbing and electrical permits. The fees are cumulative: expect $200–$400 for building, $100–$250 for plumbing, and $100–$250 for electrical, depending on valuation. A $50,000 kitchen remodel typically runs $350–$600 total in permit fees. The city's permit software (available via the city website) shows valuation thresholds and fee schedules; fees are calculated as a percentage of estimated construction cost. Lead-paint disclosure (California Code § 1667.5, implemented locally) is triggered if your home was built before January 1, 1978 — kitchens are lead-paint work because they often disturb painted finishes, windows, and cabinetry. You must provide a lead-hazard pamphlet and give occupants a 10-day inspection window before commencing work. Violation of lead-paint rules carries state fines of $2,500–$5,000 per violation.

Range-hood venting to the exterior is one of the most commonly missed details in Lomita kitchen remodels. If you're installing a new range hood and ducting it through a wall or roof to the outside, that requires a separate mechanical permit review. The inspector will verify the duct size, slope (minimum 1/4 inch per foot downslope toward the exterior), termination cap type (per IRC M1505.2, damper-equipped, not screened), and clearance from electrical and gas lines. Attempting to terminate a range hood inside the wall cavity, or venting into the attic, is a code violation and a fire hazard — Lomita's building department explicitly flags this in plan check. If your range hood is recirculating (filtering and returning air indoors), no exterior vent is required, but the filter must be accessible and cleanable. The plan must show which type you're installing.

Load-bearing walls in kitchens are the riskiest structural change. If you're removing a wall between the kitchen and an adjoining room (a common open-plan remodel), and that wall is load-bearing, you must submit an engineering letter or beam design by a California-licensed structural engineer. Lomita does not allow assumptions; the city will require a geotechnical or structural report if the wall appears to carry roof or floor loads. Removing a load-bearing wall without proper engineering and a steel or LVL beam is a code violation and a safety hazard. The structural engineer's letter costs $500–$1,500, and the beam itself adds $2,000–$5,000 to your budget. Plan review for load-bearing wall removal typically takes 4–6 weeks because the building department may request a second-opinion structural review. If your kitchen remodel includes wall removal, consult a structural engineer before pulling permits.

Three Lomita kitchen remodel (full) scenarios

Scenario A
Cosmetic kitchen refresh: new cabinets, countertops, and backsplash in place, appliance replacement (Piedmont neighborhood, 1960 ranch)
You're keeping the sink in the same location, not adding new circuits (just plugging into existing outlets), not touching plumbing, gas, or windows. Your only work is removing old cabinets, installing new ones at the same footprint, resurfacing the countertop, and adding a tile backsplash. This is cosmetic-only work and does not require a building permit in Lomita. You do not need to pull permits for cabinet and countertop work — no structural, plumbing, or electrical changes. The city considers this 'non-structural interior finish work' and explicitly exempts it from permit requirements (per CBC, kitchens are only triggered if systems or structural elements change). You should still hire licensed trade workers for backsplash installation if it involves tile work near electrical outlets, but the work itself is permit-free. Cost: cabinets $8,000–$15,000, countertops $3,000–$6,000, backsplash $1,500–$2,500, labor $4,000–$8,000. No permit fees. Total project time: 2–3 weeks, no city inspections required. Important note: if you're replacing appliances on the same electrical outlets and same gas line (if gas range), no permits are required. If you're upgrading a gas range and the gas line is undersized or poorly vented, you'll need a plumbing/mechanical permit for the gas work — but in this scenario, you're not changing the gas connection.
No permit required | Cabinet/countertop work exempt | Appliance replacement on existing circuits exempt | Total project cost $16,500–$31,500 | No city inspections
Scenario B
Moderate remodel: new cabinets, relocated sink 8 feet to adjacent wall, new 20-amp circuits for undercounter appliances (Los Pinos area, 1975 split-level, non-fire zone)
Your sink is moving 8 feet to the opposite wall, which means the drain line, trap, and vent must be rerouted — this triggers a plumbing permit. You're also adding two new 20-amp circuits dedicated to counter outlets (per IRC E3702), which requires an electrical permit. The main building permit covers the structural/cosmetic elements (cabinets, countertops, layout changes) but does not include the plumbing or electrical work — those are separate permits. In Lomita, you'll pull three permits: building ($250–$400, based on ~$45,000 remodel valuation), plumbing ($150–$250), and electrical ($150–$250). Your plumbing plan must show the new sink location, trap depth/slope (1/4 inch per foot minimum), vent routing to the existing stack, and a cleanout location. Your electrical plan must show the two new 20-amp circuits routed to the panel, labeled as 'small-appliance branch circuits,' each protected by a 20-amp breaker. No load-bearing walls are being moved, so no structural engineer letter is needed. Plan review typically takes 4–5 weeks. Inspections: rough framing (if any wall modifications), rough plumbing (before drywall), rough electrical (before drywall), drywall, and final. Lead-paint disclosure is required (home built 1975). Cost: permits $550–$900, plumbing labor/materials $2,500–$4,000, electrical labor/materials $1,500–$2,500, cabinets/countertops $12,000–$20,000, general labor $5,000–$10,000. Total project: $21,550–$37,400, timeline 6–8 weeks including plan review and inspections.
Building permit required | Plumbing permit required (sink relocation) | Electrical permit required (new circuits) | Lead-paint disclosure required (pre-1978) | Rough plumbing + rough electrical inspections | Total permit fees $550–$900 | Project timeline 6–8 weeks
Scenario C
Major remodel with open-plan: load-bearing wall removal (to dining room), island installation, new gas cooktop, range hood with exterior venting, new 240V circuit for induction cooktop (Mountain View area, 1988 contemporary, fire-zone SRA boundary)
This is the most complex scenario and triggers all five permit drivers: you're removing a load-bearing wall between the kitchen and dining room (structural), installing a new island with prep sink and gas cooktop (plumbing and gas), adding a 240V dedicated circuit for an induction cooktop (electrical), and venting a new range hood through the roof to the exterior (mechanical). Because the wall is load-bearing, you must hire a California-licensed structural engineer to design a beam (likely a steel I-beam or engineered LVL), and submit the engineer's letter with your building permit application. The building permit will be on hold for structural review — typically 2–3 weeks. Your plumbing plan must show the island sink with trap routing (accounting for the island location and horizontal run), the gas line extension to the cooktop with shutoff valve, and a second vent stack or routing to the existing main vent. Your electrical plan must show the new 240V circuit (likely 40–50 amps, depending on cooktop brand) routed in conduit to a new breaker. Your mechanical plan must show the range hood duct size (typically 6–7 inches for an island cooktop), duct routing to the roof, slope (minimum 1/4 inch per foot toward the exterior), and termination cap detail. Because your property is in a fire-zone SRA (check Cal Fire boundary map), the Lomita Building Department may require additional clearance from the roof penetration to adjacent vegetation, or a non-combustible collar around the duct. You'll pull four permits: building ($400–$600), plumbing ($200–$300), electrical ($200–$300), mechanical ($100–$150). Structural engineer: $1,000–$1,500. Beam fabrication/installation: $3,500–$6,000. Plan review is 5–8 weeks due to structural and mechanical review. Inspections: structural framing, rough framing (wall removal and beam installation), rough plumbing, rough gas (by local PG&E inspector), rough electrical, roof penetration/duct, drywall, final. Lead-paint disclosure required (pre-1978 home — though this home is 1988, so not triggered, but confirm your home's build year). Cost: permits $900–$1,350, structural engineer $1,000–$1,500, beam and installation $3,500–$6,000, plumbing (island sink + gas line) $3,500–$5,000, electrical (240V circuit) $1,500–$2,500, mechanical (range hood + duct + roof penetration) $2,000–$3,500, cabinets/island/countertops $18,000–$28,000, general labor $8,000–$12,000. Total project: $38,900–$60,350, timeline 10–14 weeks including plan review, structural approval, and inspections.
Building + plumbing + electrical + mechanical permits required | Load-bearing wall removal requires structural engineer ($1,000–$1,500) | Beam cost $3,500–$6,000 | Range-hood exterior vent requires mechanical inspection | Fire-zone SRA roof-penetration clearance verification | Permit fees $900–$1,350 | Total project timeline 10–14 weeks

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Lomita's plan-review process: why your kitchen permit takes 4–6 weeks

Lomita does not offer over-the-counter processing for kitchen permits. Unlike some California cities that allow cosmetic-only work to be reviewed and approved the same day, or expedited tracks for minor remodels, Lomita requires full plan review for any permit involving systems (electrical, plumbing, gas, mechanical). Your application goes into the queue and is reviewed by the building department's plan examiner, who checks code compliance against the CBC and California Title 24. If plumbing or electrical is involved, the plan may also be reviewed by the city's contracted plumbing/electrical inspector or the county inspector (depending on Lomita's jurisdiction agreement). This adds 1–2 weeks to review time.

Typical timeline: 1–2 weeks for initial intake and completeness check (incomplete applications are returned), 2–3 weeks for plan review and comments, 3–5 business days for resubmission of corrected plans, and 1–2 weeks for final approval. If structural engineering is required (load-bearing wall removal), add 2–3 additional weeks for structural review, possibly requiring a second-opinion review by the county or a third-party structural engineer. The city's standard response to plan submittals is via email or online portal (if available); check the city website or call 510-947-2850 (Lomita main line) to confirm the current portal and email address for permit submittals.

Common plan-check comments in Lomita kitchen remodels: (1) Two 20-amp small-appliance circuits not labeled or shown on the panel schedule; (2) Counter-receptacle spacing exceeding 48 inches on the elevation or floor plan; (3) GFCI protection not specified on the kitchen countertop receptacles; (4) Plumbing vent routing unclear — must show vent-to-window distance (minimum 10 feet, per IRC P3101), or routing to the main stack; (5) Range-hood duct size and termination cap detail missing; (6) Load-bearing wall removal without engineering letter. Anticipate one resubmission cycle for most kitchen permits — submit complete, detailed plans upfront to minimize delays.

Fire-zone SRA kitchens in Lomita: additional inspection and clearance rules

If your Lomita property is within a California State Responsibility Area (SRA) fire zone (check the Cal Fire online map or parcel search), your kitchen remodel may trigger additional mechanical and clearance inspections. Kitchens in fire zones are scrutinized for range-hood venting, dryer venting, and roof penetrations because these are common ignition points in wildfire events. Lomita's building department requires that any duct penetrating the roof (range hood, dryer, bathroom exhaust) be terminated with a damper-equipped cap, non-combustible collar, and a minimum 5-foot clearance from dead vegetation or combustible landscaping. Some fire-zone jurisdictions also require that ducts be Type B or rigid metal (not flex), and that they be sloped and graded in a way that prevents water backup during heavy rain or firefighting.

The mechanical inspector in a fire-zone kitchen will verify the range-hood termination in person during the rough-mechanical and final inspections. If your duct is vented into the attic (a code violation but sometimes seen in older homes), the city will issue a notice of violation and require immediate correction before the final permit can be issued. Cost impact: if you're in a fire zone and installing a range hood, plan an additional $500–$1,000 for non-combustible materials, professional duct installation, and roof flashing/collar. Timeline: add 1–2 weeks for fire-zone mechanical review and final clearance. Check your parcel's fire-zone status before planning your kitchen remodel; if you're on the SRA boundary, a phone call to Lomita Building Department (listed below) will clarify whether additional fire-hardening is required.

Lead-paint disclosure (Lemars) does not apply to homes built after 1977, but if your kitchen remodel includes wall demolition, cabinet removal, or window work in a pre-1978 home, you are required to provide the lead-hazard information pamphlet to occupants and allow a 10-day inspection window before commencing work. Failure to comply carries state penalties of $2,500–$5,000 per violation. Include lead-paint compliance in your permit-application paperwork; the city will flag this during intake if your home is pre-1978.

City of Lomita Building Department
Lomita City Hall, Lomita, CA (verify exact address via city website or 511 directory)
Phone: 510-947-2850 (Sonoma County Building Department; Lomita may be contracted under county jurisdiction — verify locally) | https://www.google.com/search?q=lomita+CA+building+permit+portal (city website or Sonoma County permit portal)
Monday–Friday, 8:00 AM – 5:00 PM (typical; call to confirm current hours)

Common questions

Do I need a permit to replace my kitchen cabinets and countertops in the same location?

No. Cabinet and countertop replacement in the same location is cosmetic-only work and does not require a permit in Lomita or California. You do not need to pull a building permit for this work. However, if you are also relocating the sink, moving plumbing fixtures, or adding new electrical circuits, then you will need plumbing and/or electrical permits. Confirm with the City of Lomita Building Department if any of your work involves systems changes.

What is the cost of a building permit for a kitchen remodel in Lomita?

Building permit fees in Lomita are calculated as a percentage of estimated construction cost, typically 1.5–2%. A $45,000 kitchen remodel generally costs $250–$400 for the building permit, plus $150–$250 for plumbing and $150–$250 for electrical (if applicable). Total permit fees: $400–$900 for a full remodel. The exact amount depends on your project valuation and trade scope. Call the Lomita Building Department or check the city's fee schedule online for current rates.

Do I need a structural engineer for a load-bearing wall removal in my kitchen?

Yes. If you are removing a wall that carries roof or floor loads (a load-bearing wall), you must submit an engineering letter and beam design by a California-licensed structural engineer. Lomita does not permit assumptions or exemptions for load-bearing wall removal. The engineer's report costs $1,000–$1,500, and the beam (typically steel or LVL) costs $3,500–$6,000 installed. Plan review adds 2–3 weeks for structural verification. Do not attempt to remove a load-bearing wall without engineering approval — this is a code violation and a safety hazard.

Can I move my kitchen sink without a permit?

No. Moving a sink, even a short distance, requires a plumbing permit in Lomita. The drain line, trap, and vent must be rerouted and inspected. The plumbing inspector will verify trap slope (1/4 inch per foot minimum), vent routing, and cleanout placement per IRC P2722. Relocating a sink without a permit is a code violation and can result in stop-work orders, fines, and required removal of unpermitted work.

Do I need separate permits for plumbing and electrical work in a kitchen remodel?

Yes. In Lomita, plumbing and electrical work requires separate permits from the main building permit. If your kitchen remodel includes plumbing changes (sink relocation, gas line, new fixtures), pull a plumbing permit. If it includes new circuits or outlet additions, pull an electrical permit. You can apply for all three permits (building, plumbing, electrical) at the same time. Each permit is reviewed separately and carries its own fee and inspection schedule.

What is the 'two small-appliance branch circuit' rule, and why does Lomita enforce it?

IRC E3702 requires two separate 20-amp circuits dedicated exclusively to kitchen countertop receptacles. These circuits cannot be shared with other areas, the refrigerator, or lighting. The rule exists because kitchen counters are high-load (toasters, blenders, slow cookers) and high-moisture (water splashes) — two separate circuits reduce nuisance tripping and shock hazard. Lomita's electrical inspector will reject any kitchen plan missing these two circuits. If your kitchen has counter receptacles, you must provide two dedicated 20-amp circuits on your electrical plan, labeled and routed to the panel.

Do I need a permit for a new range hood in my kitchen?

If your range hood is recirculating (filtering and returning air indoors), you likely do not need a permit. If you are installing a new hood with exterior venting (ducting through a wall or roof to the outside), you may need a mechanical permit depending on the scope. Lomita requires plan review and inspection for any new duct penetration through a wall or roof, to verify duct size, slope, termination cap, and clearance from electrical/gas lines. Check with the Lomita Building Department before purchasing a ducted hood.

What is lead-paint disclosure, and do I need to do it for my kitchen remodel?

Lead-paint disclosure (Lemars) applies to homes built before January 1, 1978. If your home is pre-1978 and you are doing kitchen work (wall demolition, cabinet removal, window work), you must provide occupants with a lead-hazard information pamphlet and allow a 10-day inspection window before commencing work. The Lomita Building Department will flag this during permit intake if your home is pre-1978. Failure to comply carries state fines of $2,500–$5,000 per violation. Include lead-paint disclosure documentation with your permit application.

How long does a kitchen permit take from application to final approval in Lomita?

Typical timeline is 4–6 weeks for plan review and approval. Intake and completeness check: 1–2 weeks. Plan review and comments: 2–3 weeks. Resubmission and final approval: 1–2 weeks. If structural engineering is required (load-bearing wall removal), add 2–3 weeks for structural review. Once permits are approved, rough inspections (framing, plumbing, electrical) occur during work; final inspection is after all work is complete. Total project duration (design through final inspection) is typically 8–12 weeks for a moderate-to-major kitchen remodel. Start your permit process early to avoid delays.

What happens if I do kitchen work without a permit and the city finds out?

Unpermitted kitchen work in Lomita results in stop-work orders ($100–$500 per day in fines), forced removal of unpermitted work at your cost, and a lien on your property. If the unpermitted work involves plumbing, it may void your water warranty and block a home sale. If it involves electrical, lenders and insurance companies may deny claims or coverage. Unpermitted gas work can result in a utility shutoff. The fines and remedial costs ($15,000–$40,000+) far exceed the original permit fees ($400–$900). Always pull permits before starting work.

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current kitchen remodel (full) permit requirements with the City of Lomita Building Department before starting your project.