Serving all of Southern California B and C-47 Licensed — CA Lic. #999468
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Built ADU

San Diego County

Manufactured homes & ADUs in San Diego County

San Diego County pairs high housing costs with some of the more workable ADU rules in the state, which is why backyard homes have caught on here faster than almost anywhere else in California.

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A finished manufactured home installed on a Southern California lot
1,200Sq ft max · detached ADU
60Day permit review · AB 68
6–15Months · typical project
Typical all-in project cost $240,000 – $320,000 For a detached 800 sq ft, 2-bed, 2-bath ADU — unit, delivery, foundation, utility connections, permits and finish work. Your number moves with lot access, utility distance and city fees, which is exactly what the site visit is for. Our cost calculator gives you a range in about a minute.
Where we work

Across San Diego County

We install in San Diego, Chula Vista, Oceanside, Escondido, Carlsbad, El Cajon, Vista, San Marcos, Encinitas and Poway — and across the rest of San Diego County.

North County lots and East County acreage behave very differently from a city lot in San Diego proper. Access for the crane and the transport is the constraint that decides more San Diego projects than any other.

Whatever the jurisdiction, the scope is the same: one licensed team handling permitting, site prep, foundation, utility connections, delivery, set and finish work under California contractor licence #999468 (B General Building and C-47 Manufactured Housing).

What we build

Three ways owners use us

Common questions

San Diego County questions

Yes — San Diego County is one of the five counties we serve, along with the rest of Southern California. Send us the address and we will tell you what the parcel supports before anything is committed.

California caps ADU permit review at 60 days under AB 68, but that clock only starts once a complete application is in, and each city works its own queue. We scope your specific jurisdiction and give you a realistic schedule rather than a statewide average.

Three things, in order: access for the transport and the crane, how far the utilities have to run, and your city’s fees. Two identical homes on two lots in the same San Diego County neighbourhood can differ by tens of thousands for those reasons alone.

Once it is on a permanent foundation and recorded through HCD Form 433A it is real property, and can generally be financed, insured and resold like a site-built home. See our guide to MH Advantage loans and ADU financing in California.

No. We manage the crane, the transport and the crew. Most owners come to watch because it is the best day of the project, but nothing needs you on site.

Tell us about your San Diego County lot

Send the address and what you have in mind. We’ll come back with what the parcel supports and what happens next. The conversation costs nothing.

Start a project inquiry CA Lic. #999468 · B General Building, C-47 Manufactured Housing
Worth reading

California rules that affect your project