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Remodeling in San Dimas: what to know before you start
Permit basics, older homes, and who to call.
San DimasHome base
1976median home built
63%built before 1980
72%owner-occupied
Permits
Do I need a permit in San Dimas?
The city's Building and Safety Division decides.
Building and Safety Division
245 E Bonita Ave, San Dimas, CA 91773
Mon-Thu 7:30 am-5:30 pm
Fri 7:30 am-4:30 pm
City of San Dimas website Fri 7:30 am-4:30 pm
Needs a permit
- Adding or removing a wall, or part of one
- All plumbing work (minor repairs like washers and faucets are exempt)
- Electrical work, including panel work and new or extended circuits
- Installing, replacing or retrofitting windows
Usually doesn't
- Repairing fixtures on existing wiring
- Replacing switches and outlets
Checked on October 6, 2026. Rules change. Confirm with the city before you start. For fees and turnaround, ask the city.
Your house
Homes from the '60s and '70s
1976Median home built
63%Built before 1980
72%Owner-occupied
Most San Dimas homes went up between 1960 and 1990, per the city's housing plan. Many are ranch and tract-era houses.
Homes built before 1978 often contain lead-based paint. The EPA requires a certified firm for paid work that disturbs it.
Source: U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024).
Our services
Start with a room
Planning a San Dimas remodel?
Call Dallas or send the form.
A free estimate starts with a conversation.
(626) 991-8219Talk to the owner