Los Angeles · new construction permits
Los Angeles new construction permits.
What it actually takes to permit a ground-up build in Los Angeles: jurisdiction, plan check, inspections, and the local overlays that change the path. Every link below points at an official Los Angeles Department of Building & Safety (LADBS) resource.
Quick answer
New SFR permits in the City of LA are issued by LADBS; overlays are confirmed on ZIMAS, and Title 24 Part 6 plus CALGreen Tier 1 apply to all new homes.
Homeowner & investor takeaway
Run a ZIMAS report before scoping any custom home in LA. Overlays change setbacks, FAR, fire construction, and even slab assemblies — and they're the difference between a 12-month build and a 24-month one.
Local jurisdiction.
Permits are issued by Los Angeles Department of Building & Safety (LADBS) (Los Angeles County). Use the official portals below — do not rely on third-party permit aggregators.
- Building department: Los Angeles Department of Building & Safety (LADBS)
- Permit portal: Los Angeles Department of Building & Safety (LADBS)
- Planning: Los Angeles Department of Building & Safety (LADBS)
- Zoning lookup: Los Angeles Department of Building & Safety (LADBS)
- Parcel / GIS: Los Angeles Department of Building & Safety (LADBS)
- Inspections: Los Angeles Department of Building & Safety (LADBS)
- Fee schedule: Los Angeles Department of Building & Safety (LADBS)
- Municipal code: Los Angeles Department of Building & Safety (LADBS)
Permit types typically involved.
Building permit
Required for a new dwelling unit, including structural, MEP, and envelope review.
Grading / drainage
Grading >50 cy or any cut/fill on Hillside-zoned parcels triggers a separate grading permit and geotech review. LID (Low Impact Development) stormwater plan is required for new SFRs.
Sewer / utility
City sewer is universal in the basin; new SFRs pay a Sewer Facilities Charge based on fixture count. Some hillside parcels still rely on private laterals that require LASAN review. LADWP service upgrades (200A → 400A) are common on full rebuilds; lead times for new service drops can extend project schedules independently of plan check.
Electrical / mechanical / plumbing
Often pulled with the building permit; some jurisdictions require separate sub-permits per trade.
Title 24 compliance
Climate Zone 9 (Los Angeles basin). New SFRs must hit current Title 24 Part 6 envelope, HVAC, and solar-PV requirements; battery storage is incentivized but not yet mandatory for SFRs.
CALGreen
CALGreen Tier 1 measures apply to all new SFRs; LA does not currently mandate Tier 2 on private SFRs but does require enhanced construction waste management (≥65% diversion).
Plan check process.
LADBS plan check runs structural, energy, residential, and grading in parallel. Expect comment cycles on Title 24 compliance, fire-sprinkler design, and grading quantities on sloped sites.
Entitlement & planning review.
Most new SFRs in R1 are ministerial; small-lot subdivisions, density-bonus projects, and any work in HPOZ / Specific Plan / Coastal areas require discretionary review through City Planning.
Inspections.
LADBS uses district inspectors with same-day or next-day scheduling via the permit portal. Foundation, framing, insulation, drywall, and final inspections are the standard hold points.
Local overlays & constraints.
City of LA uses base zones (R1, R2, RD, etc.) plus overlays (HPOZ, Specific Plans, Coastal Zone, Hillside, Very-High Fire). ZIMAS is the parcel-level source of truth; always confirm overlays before scoping.
Hillside. LA's Hillside Ordinance applies to roughly 17% of parcels and adds slope-band FAR caps, retaining-wall height limits, and stricter export limits.
Wildfire / WUI. Portions of the Santa Monica Mountains, Hollywood Hills, and Sunland-Tujunga sit in CAL FIRE Very-High Fire Hazard Severity Zones (VHFHSZ), triggering Chapter 7A ignition-resistant construction.
Flood. Limited FEMA Special Flood Hazard Areas in the basin; most flood risk is localized to LA River–adjacent parcels and a few coastal flats.
Methane. LADBS Methane Mitigation Standards (Ord. 175790) apply in mapped Methane Zones / Buffer Zones — common downtown, mid-city, and along the old oil-field corridors. Adds membrane + vent system to slab.
Seismic. Multiple active fault zones cross the city (Hollywood, Newport-Inglewood, Santa Monica). CGS EQ Zone App should be checked for Alquist-Priolo and liquefaction zones before foundation design.
Common delay drivers.
Risk 1
Missed methane zone triggering slab redesign mid-permit
Risk 2
Hillside slope-band calc reducing buildable area late
Risk 3
HPOZ revisions stretching design phase 3–6 months
Risk 4
Coastal zone parcels needing CCC review
Prepare before submittal.
- Confirm zoning, setbacks, height, and FAR for the parcel.
- Order soils / geotech early — many overlays require it before plan check.
- Complete Title 24 energy modeling and confirm CALGreen targets.
- Have a clear utility upgrade plan (sewer lateral, panel, gas) documented.
- Pre-assemble any overlay-specific studies (hillside, coastal, fire, flood).
This page is general information, not legal advice. Permit requirements change. Confirm the current process directly with Los Angeles Department of Building & Safety (LADBS).
Questions.
- Which department issues a new-home permit in the City of Los Angeles?
- The Los Angeles Department of Building & Safety (LADBS) issues the building permit; City Planning issues any discretionary entitlements (HPOZ, Specific Plan, Coastal, density bonus) before LADBS plan check.
- What is ZIMAS and why does it matter for new construction?
- ZIMAS is LA City Planning's parcel-level GIS viewer. It shows base zone, overlays (HPOZ, Hillside, VHFHSZ, Coastal, Methane), and is the first stop for any feasibility study.
- Do I need a methane mitigation system for my new LA home?
- Only if your parcel falls in a mapped Methane Zone or Methane Buffer Zone. LADBS Ordinance 175790 governs the assembly — typically a membrane, gas-collection, and active-vent system below slab.
- How does LA's Hillside Ordinance change my buildable area?
- On Hillside-zoned parcels, FAR is calculated by slope band, retaining walls are height-capped, and grading export is restricted. A geotech report is effectively required.
- What energy code applies to a new LA single-family home?
- California Title 24 Part 6 (current cycle) sets the envelope, HVAC, and rooftop-solar PV requirements; CALGreen Part 11 adds construction waste and water-efficiency measures.
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