Residential
ADU Design & Permitting in Santa Ana
ADU Design & Permitting for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.

Central Orange County · Orange County
Santa Ana's historic districts are stricter than people expect, and its industrial stock is some of the most convertible in the county. Plan review here runs through City of Santa Ana Planning and Building Agency, with Orange County Fire Authority on access and life safety. Typical experience is roughly 8 to 14 weeks to permit.
Significant historic inventory alongside dense post-war housing and large industrial stock. On the commercial side, industrial, warehouse and civic-adjacent tenant improvements, plus downtown restaurant work. Those two facts explain most of what is easy and most of what is expensive here.
Historic review adds calendar time in the designated districts; fees themselves are moderate. We put the local fee picture into the first budget, because a number that ignores school, sewer and utility charges is not a budget, it is an advertisement.
We work throughout Santa Ana ZIP codes 92701, 92703, 92704, 92705, 92706 and 92707, including Floral Park, French Park, Downtown, Delhi. Two addresses in the same ZIP can still sit under different overlays, so we review the parcel rather than the postcode.
Floral Park · French Park · Downtown · Delhi
Residential
ADU Design & Permitting for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Residential
Garage Conversions for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Residential
Additions & Remodels for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Commercial
Tenant Improvements for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Commercial
Restaurant, Retail & Hospitality for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Residential
Permitting & Plan Check for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Commercial
Construction Management for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
Commercial
Design-Build for Santa Ana owners, reviewed by City of Santa Ana Planning and Building Agency, typically 8 to 14 weeks to permit.
City of Santa Ana Planning and Building Agency. Fire review runs through Orange County Fire Authority. Santa Ana's historic districts are stricter than people expect, and its industrial stock is some of the most convertible in the county.
Typically roughly 8 to 14 weeks to permit. The variable is correction cycles, not intake speed, which is why we spend the extra week making the first submittal complete.
Most commonly: French Park, Floral Park and Washington Square historic districts; Transit zoning code around the downtown corridor; Industrial transition standards near the 5 freeway. Which ones touch your parcel is an address question, and we answer it during feasibility.
Historic review adds calendar time in the designated districts; fees themselves are moderate. We put those numbers into the first budget rather than presenting them as a later surprise.
Yes, across Los Angeles and Orange County from offices in Santa Monica and Fullerton. Nearby markets we cover include Orange, Tustin, Costa Mesa, Anaheim.
Send the address, including the ZIP code, and what you want to build. We come back with what the City of Santa Ana Planning and Building Agency route looks like, a realistic budget range and a schedule.