Brea, California Zoning Map
Zoning, overlays and hazards on every parcel — and an answer to what the code actually lets you build. Compiled from current zoning data for all 28 districts.
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What's in the Brea dataset
Every field below is available for any Brea parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 28 districts mapped
Building controls
- Maximum building height
- Floor area ratio (FAR)
- Front setback
- Side setback
Overlays, hazards & AI
- Flood hazard & environmental layers
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- Powered by live parcel data
Where uses are permitted in Brea
Share of Brea's zoned land where each use is permitted.
- Single-family
- 49.38%
- Multi-family
- 12.70%
- ADU
- 47.20%
- Two-family
- 36.67%
- Retail
- 8.77%
- Eating & drinking
- 9.31%
- Office
- 16.17%
- Hotel / motel
- 7.87%
- Industrial
- 12.45%
- Storage & warehouses
- 11.65%
Brea, California Zoning Districts: What Do They Mean?
Zoning districts are areas regulated by specific laws that determine land use, building types, and development rules. Each district below shows its zone type and which uses it permits.
| Zone Code | Category | Area | Details |
|---|---|---|---|
B-265-SP Brea 265 Specific Plan | - | 252.6 ac | Standards & uses → |
BHSP Birch Hills Specific Plan | - | 147.5 ac | Standards & uses → |
BISP Brea Industrial Specific Plan | - | 35.1 ac | Standards & uses → |
C-C Major Shopping Center Zone | - | 29.5 ac | Standards & uses → |
Showing 4 of 28 districts
Start from what you're trying to build
Each one runs against the live Brea dataset and returns the districts, standards and approvals involved.
What should developers know about Brea zoning?
Brea splits sharply between rugged hills and a built-out commercial-industrial flat, and the zoning map reflects that geography directly. The single largest district is Hillside Residential (HR) at roughly 1,300 acres, followed closely by the Single Family Residential (R-1) zone at about 1,250 acres - together they anchor the city's low-density character, with the R-1-H and R-1-5000 variants layering in additional single-family standards. Anyone evaluating land in the HR or R-1-H zones should expect grading, slope, and view-protection scrutiny that flat-lot infill simply does not face, and the Flood Plain Overlay (FP-1) adds another constraint layer where it applies.
The development action is heavily concentrated in specific plans and industrial land. Large master-planned areas - Tonner Hills (THSP) at over 800 acres, Olinda Ranch (ORSP), the Brea 265 Specific Plan, Birch Hills, and the Planned Community (P-C) district - govern much of the city's growth land under their own bespoke rules rather than the base code. On the employment side, Light Industrial (M-1) and General Industrial (M-2) cover roughly 530 and 300 acres respectively, and the city carries a full commercial spectrum from Neighborhood Commercial (C-N) up to the Major Shopping Center (C-C) zone. Three Mixed Use districts (MU-1, MU-2, MU-3) and the R-2 and R-3 multifamily zones are where most denser housing capacity sits.
For a developer, the practical read is that base-zone entitlements only tell part of the story here - a meaningful share of Brea's acreage is governed by specific-plan documents that set their own permitted uses, densities, and design standards. Building controls on record span the full range, including FAR, density, coverage, lot-width, height, and setbacks on all four sides. This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Brea zoning: frequently asked questions
Where is multifamily housing actually allowed in Brea?
The base multifamily capacity sits in the R-2 and R-3 Multiple Family Residential zones, which together cover roughly 400 acres, plus the three Mixed Use districts (MU-1, MU-2, MU-3) where residential can layer over commercial. Several specific plans such as Tonner Hills and Olinda Ranch also include their own residential components. Confirm the allowed density and product type against the governing specific plan or base-zone standards before underwriting.
What should I know about building in Brea's hillside areas?
Brea's largest single district is Hillside Residential (HR) at about 1,300 acres, and the R-1-H Single Family Hillside zone adds more. Sloped sites carry grading limits, slope-density considerations, and view and ridgeline protections that flat parcels avoid, and the FP-1 Flood Plain Overlay can apply where drainage courses run. Expect a longer, more engineering-heavy entitlement path on these parcels.
How much of Brea is given over to industrial and employment uses?
A substantial share. Light Industrial (M-1) covers roughly 530 acres and General Industrial (M-2) about 300 acres, and the Commercial Industrial (C-M) and Brea Industrial Specific Plan (BISP) add further capacity. For users seeking manufacturing, warehousing, or flex space, Brea offers one of north Orange County's deeper industrial inventories.
Why do so many parcels in Brea fall under specific plans instead of standard zoning?
Much of Brea's growth land - including Tonner Hills (over 800 acres), Olinda Ranch, Brea 265, Birch Hills, Tomlinson Park, and the Planned Community district - is governed by adopted specific plans. These documents set their own permitted uses, densities, and design rules that override the base zoning code. Always pull the relevant specific plan, not just the zoning designation, when evaluating those sites.
Can I add an ADU on a single-family lot in Brea?
Single-family land dominates Brea through the R-1, R-1-5000, R-1-H, and HR districts, and California's statewide ADU statutes apply to those lots regardless of local zoning. State law constrains how cities can limit ADUs and junior ADUs on single-family and multifamily property. Verify Brea's local ADU ordinance and any hillside or specific-plan overlays that may affect siting on a given parcel.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Brea planning department before acquisition or design.