San Dimas, California Zoning Map

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.

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.

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.

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.

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.