Rosemead, 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 17 districts.
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What's in the Rosemead dataset
Every field below is available for any Rosemead parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 17 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 Rosemead
Share of Rosemead's zoned land where each use is permitted.
- Single-family
- 65.85%
- Multi-family
- 28.63%
- ADU
- 65.50%
- Two-family
- 26.65%
- Retail
- 20.29%
- Eating & drinking
- 20.16%
- Office
- 20.16%
- Hotel / motel
- 15.86%
- Industrial
- 8.51%
- Storage & warehouses
- 3.66%
Rosemead, 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 |
|---|---|---|---|
C-1 Neighborhood Commercial | - | 5.4 ac | Standards & uses → |
C-3 Medium Commercial | - | 314.8 ac | Standards & uses → |
C-4 Regional Commercial | - | 3.4 ac | Standards & uses → |
CBD Central Business | - | 32.5 ac | Standards & uses → |
Showing 4 of 17 districts
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Each one runs against the live Rosemead dataset and returns the districts, standards and approvals involved.
What should developers know about Rosemead zoning?
Rosemead is a dense inner San Gabriel Valley city where residential and commercial uses are tightly interwoven across 17 zoning districts. The single largest district by a wide margin is R-1 (Single Family Residential) at 1,050.76 acres, but R-2 (Light Multiple Residential, 614.20 acres) is the second-largest district, meaning a substantial share of the city's residential land is zoned for small multifamily development. The third-largest residential tier, R-3 (Medium Multiple Residential, 91 acres), adds further density capacity.
On the commercial side, C-3 (Medium Commercial) dominates at 314.79 acres and covers most of the city's arterial retail corridors. The Garvey Avenue Specific Plan (GASP) and its sub-districts - including GASP-MU (Incentivized Mixed Use, 53.07 acres) and GASP-R/C (Residential Commercial, 9.49 acres) - reflect a targeted planning effort to concentrate mixed-use density along this key corridor. The P-D (Planned Development) overlay at 136.97 acres and the 206.91-acre O-S (Open Space) district round out a land use picture that balances infill residential intensification with large open-space preservation.
Building controls span FAR, density, lot coverage, pervious surface, setbacks, and height - a full regulatory toolkit that applies across districts. This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Rosemead zoning: frequently asked questions
Which Rosemead zoning districts allow multifamily housing?
R-2 (Light Multiple Residential, 614.20 acres) and R-3 (Medium Multiple Residential, 91 acres) are the primary multifamily districts. Together they account for over 700 acres of multifamily-eligible land. The GASP-MU (Garvey Avenue Specific Plan Incentivized Mixed Use, 53.07 acres) and GASP-R/C (Residential Commercial, 9.49 acres) sub-districts also permit residential components within mixed-use projects.
What is the Garvey Avenue Specific Plan and how does it affect development?
The Garvey Avenue Specific Plan (GASP) creates a layered set of land-use sub-districts along Garvey Avenue totaling roughly 89 acres across four zones: GASP (25.07 acres), GASP-MU (53.07 acres), GASP-R/C (9.49 acres), and GASP-OS/P (1.33 acres). The Incentivized Mixed Use sub-district is the most important for developers, as it is designed to encourage ground-floor commercial with residential above. Projects in a specific plan area follow plan standards rather than standard zoning codes, so reviewing the GASP document directly is essential.
How significant is light industrial zoning in Rosemead?
The M-1 (Light Manufacturing Industrial) district covers 91.29 acres, concentrated in pockets away from the main residential areas. The CI-MU (Commercial Industrial Mixed Use, 6.72 acres) district provides an additional flexible industrial-commercial buffer. Developers looking at industrial conversion or adaptive reuse should evaluate proximity to the C-3 and R-2 corridors, as these industrial parcels may carry future residential or commercial upzoning potential.
What role does the Central Business (CBD) district play in Rosemead?
The CBD district covers 32.49 acres and functions as Rosemead's downtown commercial core. It is distinct from the larger C-3 corridor commercial zone and typically allows a broader range of uses and higher intensities. Paired with the adjacent P-O (Professional Office, 2.30 acres) district, the downtown zone supports office, retail, and service commercial uses in a compact area.
How does SB-9 interact with Rosemead's R-1 single-family zoning?
California's SB-9 allows lot splits and construction of up to two units per parcel on R-1 lots city-wide, which in Rosemead's context means the 1,050-acre R-1 district carries meaningful gentle-density infill potential. Combined with state ADU law, a standard R-1 parcel could yield up to four units under the right conditions - though local development standards, lot size, and access requirements will constrain individual sites.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Rosemead planning department before acquisition or design.