Folsom, 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 86 districts.
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What's in the Folsom dataset
Every field below is available for any Folsom parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 86 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 Folsom
Share of Folsom's zoned land where each use is permitted.
- Single-family
- 47.57%
- Multi-family
- 9.02%
- ADU
- 13.48%
- Two-family
- 14.90%
- Retail
- 29.46%
- Eating & drinking
- 30.49%
- Office
- 19.19%
- Hotel / motel
- 14.44%
- Industrial
- 7.65%
- Storage & warehouses
- 36.98%
Folsom, 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 |
|---|---|---|---|
A-1-A Agricultural Reserve District | - | 642.5 ac | Standards & uses → |
BP Business And Professional District | - | 18.6 ac | Standards & uses → |
BP-PD Business And Professional Planned Development District | - | 190.1 ac | Standards & uses → |
C-1 Neighborhood Business District | - | 16 ac | Standards & uses → |
Showing 4 of 86 districts
Start from what you're trying to build
Each one runs against the live Folsom dataset and returns the districts, standards and approvals involved.
What should developers know about Folsom zoning?
Folsom is a master-planned Sacramento County suburb, and its zoning reflects that lineage: 86 districts in total, with a striking number of them carrying a Planned Development (PD) suffix. Among the districts on record, the largest residential categories are Single Family Dwelling Small Lot Planned Development (R-1-M-PD, about 1,765 acres) and the conventional Small Lot district (R-1-M, about 928 acres), along with the Medium Lot district (R-1-ML, about 1,150 acres). This is a community organized around large, master-planned single-family subdivisions, where the PD overlay is the rule rather than the exception and lot-size designations - large, medium, and small - finely calibrate density across neighborhoods.
The non-residential side is equally master-planned. Open Space Conservation (OSC, about 2,695 acres, plus an OSC-PD variant) is the single largest district, consistent with Folsom's lake, river, and trail setting. Commercial land runs from Neighborhood Business (C-1) through Central Business (C-2) to General Commercial (C-3), each with a PD counterpart, and the largest commercial category on record is General Commercial Planned Development (C-3-PD, about 691 acres). Industrial and office uses appear as Light Industrial (M-1), General Industrial (M-2), Limited Manufacturing (M-L), and Business and Professional (BP) districts, again largely in PD form, plus a Mixed Use (MU) district and a Historic District (HD) protecting the old town core. An Agricultural Reserve (A-1-A, about 642 acres) and agriculture-combining residential districts hold parts of the edge. With FAR, lot, density, coverage, pervious, lot-width, setback, and height controls all applied, and PD standards layered on most parcels, the governing development plan is the document that matters most for any Folsom site.
This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Folsom zoning: frequently asked questions
Why do so many Folsom zones carry a 'PD' suffix?
PD stands for Planned Development, and in Folsom it is attached to most residential, commercial, and industrial districts - R-1-M-PD, C-3-PD, M-1-PD, and many more. As a master-planned city, Folsom governs most large parcels through adopted development plans that set tailored standards rather than relying solely on the base zone. For any PD parcel, the controlling document is that specific development plan, which you should obtain before assuming what is allowed.
How does Folsom calibrate single-family density?
Folsom keys its single-family districts to lot size - Large Lot (R-1-L), Medium Lot (R-1-ML), and Small Lot (R-1-M) - each typically available in both conventional and Planned Development form. The Small Lot PD district (R-1-M-PD) is the largest residential category on record at about 1,765 acres. The lot-size designation directly controls subdivision yield, so it is the first thing to read on any residential parcel.
What is the Historic District (HD) in Folsom for?
The Historic District, including an HD-PD variant, protects Folsom's old town core, where historic character governs new construction and alterations. Projects in HD typically face design review tied to the area's historic context rather than the standards that apply in conventional commercial zones. If you are evaluating a downtown infill or adaptive-reuse opportunity, factor that review process into your timeline.
How much of Folsom is open space, and why?
Open Space Conservation (OSC) is the single largest district at about 2,695 acres, with an additional OSC-PD variant. This reflects Folsom's setting around Folsom Lake, the American River, and an extensive trail network, plus habitat and conservation areas. That large open-space footprint is effectively off the private development market, so net it out when estimating buildable inventory.
Where can mixed-use or commercial development happen in Folsom?
Folsom offers a tiered commercial system from Neighborhood Business (C-1) to Central Business (C-2) and General Commercial (C-3), each with a Planned Development counterpart, plus a dedicated Mixed Use (MU) district. General Commercial Planned Development (C-3-PD) is the largest commercial category on record at about 691 acres. For mixed-use specifically, the MU district and the relevant PD plans are where to confirm permitted uses and standards.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Folsom planning department before acquisition or design.