San Dimas Zoning Intelligence
Zoning, permitted uses, ADU rules, and development potential for San Dimas, California. 75 districts analyzed.
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How is San Dimas zoned?
Permitted uses vary by district. Search a San Dimas parcel on the map above to see exactly what you can build there.
- Total zoning districts75
- Residential districts6
- Commercial districts2
- Industrial districts1
Statewide law - applies to all California cities, not specific to San Dimas.
- California state ADU lawApplies statewide
- SB-9 lot split eligibilityPer parcel review
- SB-79 (transit-oriented housing)Near transit, from Jul 2026
- Density Bonus Law (state)Eligible projects
- Local impact / permittingVerify with San Dimas planning
What should developers know about San Dimas zoning?
San Dimas organizes its land use across 75 zoning designations, with a character that blends established single-family neighborhoods, significant open space, and a light industrial base. The SF-7500 district is the city's dominant residential classification at approximately 658 acres, establishing the suburban single-family texture that covers much of the developed residential core. Open Space (OS) is the largest individual designation overall at roughly 2,385 acres, reflecting San Dimas's proximity to the San Gabriel Mountains and the substantial hillside and natural land that remains undeveloped.
For multifamily developers, the Multiple Family Residential (MF) series - spanning MF-11, MF-12, MF-15, MF-16, and the MF-D duplex variant - accounts for a combined footprint in the city's established corridors, though the individual parcels are relatively modest in size. The Creative Growth (CG-1 through CG-4) districts, totaling roughly 126 acres, represent a distinctive commercial framework aimed at mixed and entrepreneurial uses. Light Manufacturing (M-1) at approximately 192 acres provides an industrial base, while the Public and Semi-Public (PS) district adds another 235 acres of civic-use land. Mobile Home Park (MH-P) at 97 acres is a notable component of the city's housing stock.
This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
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Try ArchiWise free →San Dimas, 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 | Zone Type | Permitted Uses | Area |
|---|---|---|---|
AL Light Agriculture | - | - | 73.3 ac |
AL-10000 Light Agriculture | - | - | 26.5 ac |
AP Administrative Professional | - | - | 50.9 ac |
CG-1 Creative Growth | - | - | 59.1 ac |
What are the building controls in San Dimas?
Setback, height, FAR, lot area, and density controls enforced across San Dimas zoning districts.
- Assorted
- Far control
- Lot control
- Multi control
- Density control
- Coverage control
- Pervious control
- Lot width control
- Rear setback control
- Side setback control
- Front setback control
- Building height control
Cities near San Dimas
San Dimas zoning: frequently asked questions
What is the Creative Growth (CG) zone in San Dimas and what can be built there?
San Dimas uses four Creative Growth designations (CG-1 through CG-4) covering a combined roughly 126 acres. These districts are designed to support a mix of commercial, office, and flexible business uses - developers should consult the specific CG sub-designation for permitted and conditionally permitted uses, as each tier carries different intensity and use allowances. The CG framework is one of the more distinctive commercial zoning tools in the San Gabriel Valley.
How does the large Open Space (OS) designation affect developable land in San Dimas?
The Open Space district at approximately 2,385 acres is the single largest land classification in San Dimas, encompassing hillside terrain, natural areas, and lands adjacent to the San Gabriel Mountains. Development within OS is extremely limited; these parcels are generally preserved for recreation, habitat, or watershed protection. Buyers should verify whether any specific OS-designated parcel carries conditional development rights or has been placed under conservation easement before assuming any buildable potential.
What multifamily options exist in San Dimas?
The MF series (MF-11, MF-12, MF-15, MF-16, and MF-D duplex) collectively provides the city's primary multifamily capacity, though total acreage per sub-designation is relatively limited. The MF-D duplex zone at approximately 12 acres caters to two-unit attached housing. California's ADU and SB-9 provisions also create additional density opportunities on qualifying single-family lots citywide, including within the SF-7500 base zone.
What is the nature of San Dimas's industrial zoning?
Light Manufacturing (M-1) at roughly 192 acres forms the city's industrial base. The M-1 classification typically accommodates light assembly, warehousing, contractor operations, and service-industrial uses, though permitted uses are defined by the specific ordinance provisions. Investors targeting light industrial or flex-industrial product in the I-210 corridor area should evaluate individual parcels for compliance with M-1 use tables and proximity constraints.
How does the Administrative Professional (AP) zone factor into commercial investment?
The Administrative Professional (AP) district covers approximately 51 acres and is oriented toward office and professional service uses rather than retail or industrial activity. AP sites are typically positioned along arterial corridors or adjacent to commercial nodes and can suit medical offices, financial services, and similar tenants. For retail or restaurant uses, the Commercial Neighborhood (CN), Commercial Highway (CH), or CG zones would be the more appropriate base classifications.
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Zoning data is pre-development intelligence, not legal advice. Verify with the San Dimas planning department before acquisition or design.