Neighborhood overview
Downtown Historic District is in San Dimas, California. San Dimas's older downtown core, bordered generally by Gladstone Street, Walnut Avenue, Arrow Highway and Amelia Avenue.
The Housing Element also says, “The City does not have a formal historic preservation program, but is supportive of property owners preserving their historic homes and structures.” So the name describes the area; it is not a designated district. In 1991 the City adopted Design Guidelines for the Town Core, to guide the rehabilitation of the historic building fabric of the Town Core and Bonita Avenue areas. The City also promotes Mills Act contracts for historic buildings.
The Housing Element describes the older downtown core as bordered generally by Gladstone Street, Walnut Avenue, Arrow Highway and Amelia Avenue. The City's Town Core Design Guidelines cover the Town Core and Bonita Avenue areas.
Homes & property types
A mix of older single-family homes and newer mixed-use and infill housing, which the City's housing policy encourages downtown. New single-family homes in the Town Core are limited to previously approved architectural styles, reviewed by the Development Plan Review Board.
What makes properties here different
Check whether the home was identified in the City's historic resource survey and whether it qualifies for a Mills Act contract, which can substantially reduce property taxes. Buyers planning changes will want to know the Town Core Design Guidelines apply.
Living in the neighborhood
The Housing Element calls for mixed-use and infill housing downtown as part of the City's revitalization strategy, tied to the Gold Line station.
Neighborhood FAQ
- Where is the San Dimas historic downtown?
- The Housing Element describes the older downtown core as bordered generally by Gladstone Street, Walnut Avenue, Arrow Highway and Amelia Avenue.
- Are there design rules for downtown San Dimas homes?
- Yes. The City's Town Core Design Guidelines guide construction and alteration of residential structures, and new single-family homes in the Town Core are limited to previously approved architectural styles.
Other San Dimas neighborhoods
Sources
- City of San Dimas — 2021–2029 Housing Element — retrieved 2026-10-15.
San Dimas city guide · All San Dimas neighborhoods · Selling options in San Dimas
Sidney Manzo, CA DRE #01108914, licensed in California. Informational only: a property-specific review is advisory, not an appraisal, and neither this page nor the form creates a listing agreement. Equal Housing Opportunity.

