Costa Mesa, 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 23 districts.
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What's in the Costa Mesa dataset
Every field below is available for any Costa Mesa parcel, on the map and through the AI.
Zoning
- District code & full name
- Category & ordinance article
- Parcel boundary & APN
- All 23 districts mapped
Use classes, resolved
- Read per zoning district
Building controls
- Maximum building height
- Floor area ratio (FAR)
- Front setback
- Side setback
Overlays, hazards & AI
- Flood hazard & environmental layers
- Ask the AI about any parcel
- Powered by live parcel data
Where uses are permitted in Costa Mesa
Share of Costa Mesa's zoned land where each use is permitted.
- Single-family
- 57.86%
- Multi-family
- 30.62%
- ADU
- 58.58%
- Retail
- 53.15%
- Eating & drinking
- 31.57%
- Office
- 31.69%
- Hotel / motel
- 17.92%
- Industrial
- 14.85%
- Storage & warehouses
- 48.54%
Costa Mesa, 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 | Permitted Uses | Area | Details |
|---|---|---|---|---|
AP Administrative And Professional | Commercial |
| 9.9 ac | Standards & uses → |
C1 Local Business | Commercial |
| 417.5 ac | Standards & uses → |
C1-S Shopping Center | Commercial |
| 73.7 ac | Standards & uses → |
C2 General Business | Commercial |
| 169.2 ac | Standards & uses → |
Showing 4 of 23 districts
Start from what you're trying to build
Each one runs against the live Costa Mesa dataset and returns the districts, standards and approvals involved.
Where can I build multifamily in Costa Mesa?
3 of 23 districts permit multifamily - by right, conditionally, or by variance.
Run it →Which sites allow a warehouse?
2 industrial districts (MG, MP) with height and access limits.
Run it →Are ADUs allowed in Costa Mesa?
Allowed statewide under California law, subject to local development standards.
Run it →What does AP actually permit?
The full standards for one district, read straight from the source.
Run it →What should developers know about Costa Mesa zoning?
Costa Mesa is a mature Orange County city that pairs a deep single-family base with a robust planned-development and industrial-park economy across its 23 zoning districts. The dominant zone is R1 Single Family Residential at roughly 2,276 acres, but the second-largest is Institutional and Recreational (I-R) at about 1,678 acres - an unusually large civic and recreational footprint that includes the I-R-MLT (Multiuse) and I-R-S (School) variants and reflects the city's significant institutional, school, and open-space land. For developers, that means a large share of the city is in single-family or institutional use, with intensification concentrated in defined districts.
Costa Mesa's multifamily and planned-development framework is notably layered. Beyond R3 (Multiple Family Residential) at roughly 516 acres and the tiered R2-MD (Medium Density) and R2-HD (High Density) districts, the city uses a full suite of Planned Development Residential zones - PDR-HD, PDR-MD, PDR-LD, and PDR-NCM (North Costa Mesa) - to govern master-planned housing by density. On the employment side, the Industrial Park (MP) district at roughly 485 acres, General Industrial (MG), and Planned Development Industrial (PDI) anchor a substantial industrial base, while Planned Development Commercial (PDC), Local Business (C1), General Business (C2), Shopping Center (C1-S), Commercial Limited (CL), the Town Center (TC) district, and Administrative and Professional (AP) cover the commercial and office spectrum.
Building controls span FAR, lot size, multi-unit, density, coverage, pervious surface, lot width, all setbacks, and height, plus an Assorted category. With its planned-development orientation, Costa Mesa rewards developers who understand which PD overlay governs a parcel, since those districts often carry project-specific standards. This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Costa Mesa zoning: frequently asked questions
What do the PDR districts mean for housing developers?
Costa Mesa uses Planned Development Residential districts tiered by intensity - PDR-HD (high), PDR-MD (medium), PDR-LD (low), and PDR-NCM for North Costa Mesa - to govern master-planned housing. These zones typically carry project- or area-specific standards rather than generic by-right rules, so a housing developer must identify which PDR designation applies and review its governing plan before underwriting unit counts.
Why is the Institutional and Recreational (I-R) district so large?
At roughly 1,678 acres, I-R is the city's second-largest district and includes the I-R-MLT multiuse and I-R-S school variants. It captures Costa Mesa's extensive schools, civic facilities, fairgrounds-style uses, and recreational land. For developers, this land is generally committed to institutional and public uses and is rarely available for conventional private development.
Where is industrial and flex space concentrated in Costa Mesa?
The Industrial Park (MP) district at roughly 485 acres is the primary base for industrial and flex users, complemented by General Industrial (MG) and Planned Development Industrial (PDI). These districts support manufacturing, warehousing, and R&D, and their planned-development variant signals areas where master-planned business-park standards apply.
What is the Town Center (TC) district intended for?
The Town Center (TC) district reflects Costa Mesa's interest in a concentrated, higher-intensity mixed-use core. It is well suited to walkable, mixed commercial and residential development, and developers seeking density and a mix of uses should evaluate TC-zoned parcels alongside the Planned Development Commercial (PDC) district.
How do the R2-MD and R2-HD districts differ for multifamily projects?
Both are multiple-family residential, but R2-MD is medium density at roughly 695 acres and R2-HD is high density at about 177 acres, with R3 providing additional multifamily capacity at roughly 516 acres. A developer chasing maximum unit yield should prioritize R2-HD and R3 parcels, while confirming the city's density, coverage, setback, and height controls for each specific site.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Costa Mesa planning department before acquisition or design.