Building permits in unincorporated Los Angeles County are issued by the Building and Safety Division of LA County Public Works, with applications filed through EPIC-LA (Electronic Permitting and Inspections for the County of Los Angeles). The county serves unincorporated communities through 10 district offices and also provides services to contract cities.
This Los Angeles County building permit guide covers what requires a permit, how fees work, the EPIC-LA process, trade permits, and inspections — so your LA County project starts clean.
This guide covers unincorporated Los Angeles County. With 88 incorporated cities in the county, your first step is the Public Works Service Locator — enter your address or parcel number to confirm whether the county (or a city) has jurisdiction. Planning and zoning for unincorporated areas is handled by the Department of Regional Planning (DRP).
What requires a building permit in Los Angeles County?
Under the California Building Standards Code (Title 24) as adopted with Los Angeles County amendments (Title 26), a permit is required before you construct, enlarge, alter, repair, move, demolish, or change the occupancy of most structures. Common triggers include:
Permit required
- New construction, additions, and tenant improvements
- Structural / load-bearing alterations and demolition
- Reroofing, window and door replacement, and exterior work
- Electrical service changes and most wiring alterations
- Mechanical / HVAC installations and changeouts
- Plumbing alterations, repipes, and water heaters
- Grading and retaining walls
- Swimming pools, spas, signs, and solar
Typically exempt
- Painting, flooring, cabinetry, and cosmetic work
- Work expressly exempt under the County code (confirm)
- Like-for-like minor repairs not altering structure or systems
- Routine maintenance not extending or rerouting systems
Exemptions are narrow and scope-specific. When unsure, confirm with the building department before starting — see the penalty note below.
Get the permit issued before starting work. Building without one exposes the owner to penalties and stop-work orders. Confirm jurisdiction in the Service Locator and apply through EPIC-LA first.
Who handles permitting in Los Angeles County?
Permitting, plan check, and inspections are administered by Building and Safety through 10 district offices; planning and zoning for unincorporated areas run through the Department of Regional Planning. Note that permits expire if work doesn't start within 12 months or lapses for more than 180 days.
| Detail | Information |
|---|---|
| Office | LA County Public Works, 900 S. Fremont Ave, Alhambra, CA 91803 (10 district offices) |
| Find your office | Public Works Service Locator (by address or parcel number) |
| Online portal | EPIC-LA — epicla.lacounty.gov (unincorporated areas) |
| Contract cities | Building & Safety Online Plan check (BSOP) + district office |
| Planning | Department of Regional Planning (DRP) for unincorporated areas |
| Enforced code | California Building Standards Code (Title 24) + County Title 26 |
Use the Service Locator, then apply in EPIC-LA. Confirm the property is in unincorporated LA County, then log in or create an EPIC-LA account, apply for the permit, upload plans as attachments, and pay review fees after the county confirms your documents. Contract-city projects use the BSOP web application and the local district office.
Los Angeles County building permit cost
Los Angeles County building permit fees include plan check and permit fees based on project type and valuation, set by the County fee schedule. Fees are calculated when you apply in EPIC-LA.
Permits expire if work hasn't started within 12 months of issuance or if work lapses for more than 180 days; extensions of 180 days may be granted on written request, with an extension fee of up to 25 percent of the permit fee. Confirm current amounts before budgeting.
| Fee component | How it works |
|---|---|
| Plan check fee | Based on project type and valuation; paid to begin review |
| Building permit fee | Based on project type and valuation |
| Trade permits (E / P / M) | Charged separately per trade |
| Permit expiration | 12 months to start; 180-day lapse voids the permit |
| Extension fee | Up to 25% of the permit fee |
| Work-without-permit | Penalties and possible stop-work orders |
Want a precise number for a specific Los Angeles County project? Send us the scope and valuation and we'll return a fee estimate alongside a filing timeline.
Los Angeles County trade permits
Electrical, plumbing, and mechanical work generally needs its own permit and a CSLB-licensed contractor, each filed in EPIC-LA.
Electrical permits
Required for service installations, panel upgrades, solar PV, and most wiring alterations, performed by a C-10 licensed electrical contractor.
Plumbing permits
Required for new plumbing, repipes, water heater changeouts, fixtures, and gas piping, performed by a C-36 licensed plumbing contractor.
Mechanical (HVAC) permits
Required for HVAC changeouts, ductwork, and refrigeration, performed by a C-20 licensed HVAC contractor. Specialized systems are permitted and inspected separately.
Miscellaneous & specialty
Reroofs, pools, signs, grading, and solar are permitted separately. Much of unincorporated LA County lies in Fire Hazard Severity Zones, so wildfire-related requirements (ignition-resistant construction, defensible space) and grading review often apply.
Verify your contractor's license. California requires a Contractors State License Board (CSLB) license for any project where labor and materials total $500 or more — covering general (A/B) and specialty trades (C-10 electrical, C-36 plumbing, C-20 HVAC). Verify a license at (800) 321-2752 before signing. The property owner is responsible for ensuring a permit is obtained.
How to get a building permit in Los Angeles County
Confirm jurisdiction & scope
Use the Public Works Service Locator to confirm the parcel is in unincorporated LA County, verify the work needs a permit, and check DRP zoning.
Prepare your documents
Assemble the application, valuation, Title 24 energy forms, and stamped/sealed plans per the checklists.
Apply in EPIC-LA
Create or log into your EPIC-LA account, apply for the permit, and upload plans as attachments.
Plan check & corrections
Pay review fees to begin plan check; the county returns a correction list if changes are needed — resubmit until approved.
Pay fees & pull the permit
Pay the calculated fees, then post the permit on site and keep approved plans available.
Schedule inspections through close-out
Request inspections online in EPIC-LA. Clear all required inspections to obtain your final approval / Certificate of Occupancy.
Inspections in Los Angeles County
Schedule inspections online through EPIC-LA for unincorporated projects (contract-city projects call the issuing district office). Typical checkpoints include foundation, rough-in MEP, framing, insulation, and final. Post the permit and approved plans on site.
A re-inspection fee applies to failed inspections and must be cleared before a final inspection or Certificate of Occupancy can be requested.
Official Los Angeles County permitting resources
- 🏛️ LA County Public Works — Building & Safety
- 💻 EPIC-LA portal
- 📍 Public Works Service Locator
- 🪪 Contractors State License Board (CSLB)
- 🗺️ Department of Regional Planning
- 📘 California Building Standards Code (Title 24)
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Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the building department through issuance — including preparing private-provider documentation where that option is available. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
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More California permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with LA County Public Works Building & Safety before filing. This is not legal advice.