A roof replacement permit is required almost everywhere NEMA Roofing works: the City of Los Angeles, Oxnard, Carpinteria and the unincorporated parts of Santa Barbara, Ventura, Riverside and San Bernardino counties all list reroofing as permitted work. Only small repairs can skip it, and the size limit changes from one building department to the next. A reliable roofing company near you knows which office covers your address and what the permit adds to the job. Questions about your roof? Call NEMA Roofing at 866-631-3366.
Which roof repairs can skip a permit?
Each building department sets its own small-repair threshold. The table sums up what the published rules of the offices below say; if your job is close to a limit, treat it as needing a permit and ask the office.
| Building department | Reroofing | Small work that is exempt |
|---|---|---|
| City of Los Angeles (LADBS), including Woodland Hills, Tarzana and Encino | Permit required; many reroofs qualify for an Express Permit with no plan check | See the Express Permit rules below rather than an area limit |
| City of Oxnard, Building and Engineering Division | Permit required for repairs over 40 square feet | Under 40 square feet, as long as the work stays in the roof covering and does not reach the underlayment or structure |
| City of Carpinteria, Building Division | Permit required to reroof | Weatherproof coating patches of 40 square feet or less; anything into the underlayment or structure needs a permit |
| Santa Barbara County Building & Safety (unincorporated areas, Montecito included) | Permit required | Roof repairs under 100 square feet within a twelve-month period; an approved coating over an existing roof (fire-resistant materials in high fire hazard areas) |
| Ventura County Building and Safety (unincorporated areas) | Permit required | The county’s exempt-work list has no roofing item, so plan on a permit even for a small reroof |
| Riverside County Building and Safety (unincorporated areas) | Re-Roof Permit required | Work on less than 25 percent of the roof, no more than 100 square feet, with no sheathing or framing replaced |
| San Bernardino County Building and Safety (unincorporated areas) | Re-roofing is on the county’s list of work that needs a building permit | Ask the county before assuming any exemption |
Notice the pattern: a patch that stays in the top layer is treated as repair, while anything that opens the underlayment or touches the deck counts as roofing work under a permit. That is also the point where most leaks are properly fixed, so a “no permit” quote for a problem that reaches the deck is a repair that stops at the surface.
Is it the city or the county that issues your permit?
Your mailing address can mislead you. Woodland Hills, Tarzana and Encino are neighborhoods inside the City of Los Angeles, so LADBS issues their permits. Westlake Village is its own city but contracts with Los Angeles County for building and safety, so its permits go through the county’s EPIC-LA system. A home outside any city limits falls under the county building department, and many rural addresses carry the name of the nearest town. Check the parcel on the city or county map, or ask your roofer to confirm before the estimate is final.
What does the permit bring into the job?
Pulling a permit means the work is built to the current code, and a roof replacement triggers rules that a patch does not:
- Tear-off or recover. Section R908.4 of the 2025 California Residential Code rules out laying new roofing on top when the existing roof already carries two or more layers, when it is clay, cement or slate tile, or when it is too wet or worn to act as a base. Any of those makes the job a full tear-off to the deck.
- Cool roof rules. When more than half of a home’s roof is replaced, California’s Title 24 energy code can require a rated cool roof product, depending on the climate zone and roof slope. LADBS requires a product certified by the Cool Roof Rating Council on residential replacements over 50 percent of the roof area.
- Fire rating. LADBS requires a Class A roof covering in Very High Fire Hazard Severity Zones. Riverside County’s reroof permit requires Class A material in high fire areas, plus a 72-pound mineral-surfaced cap sheet under S-type tile.
- Heavier roofs. The LADBS Express Permit covers Class A or B coverings under 6 pounds per square foot over solid sheathing. A heavier covering, such as a switch to tile, needs more review.
These rules decide the material list, which is why two estimates for the same house can differ: one may include a tear-off or a rated cool product and the other may not. For how cool roof ratings work in a Valley climate, read cool roofing benefits in Woodland Hills.
What inspections happen during a reroof?
Inspections follow the permit. Riverside County’s reroof permit, for example, calls for a roof deck inspection whenever the old roofing is stripped to the sheathing or new sheathing goes on, and a final inspection when the reroof is complete. Other offices set their own schedules, and the permit card lists them. Two practical points follow:
- Where a deck inspection is required, it has to happen before the underlayment covers it, so a crew that tears off and re-covers in one push without an inspection has skipped a step.
- The signed final inspection is your proof that the roof passed. Keep a copy with the house records for insurance and resale.
Questions to ask a roofing company about permits
- Which building department covers my address, and is this job a reroof or a repair under its rules?
- Who obtains the permit, and are the fees in the estimate?
- Does the job trigger cool roof or Class A requirements here, and which products meet them?
- Will the old roof come off, and why or why not?
- Which inspections are scheduled, and will I get the signed final?
A contractor who can answer these for your address knows your building office. Also check the license on the state board’s website; NEMA Roofing holds CSLB license #1083283. The roof replacement checklist covers the rest of the job, and partial vs full roof replacement explains where the 50 percent line matters.
Permits across NEMA Roofing’s service area
NEMA Roofing works from five locations (Santa Barbara, Oxnard, Woodland Hills, Tarzana and Downey) and takes on reroofs in every part of Santa Barbara, Ventura, Los Angeles, Riverside and San Bernardino counties, so a job of ours can fall under any of the offices in the table. Our roofing contractor service page explains how a first visit works, and the roof replacement service covers the full job. To find out which permit your roof needs, call NEMA Roofing at 866-631-3366.
