Local adu — Berkeley, CA
Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
Frequently asked in Berkeley
Can I get an accessory dwelling unit contractor in San Diego for a Berkeley project?
Where can I find accessory dwelling unit builders near me in Berkeley?
What are the essential components of an accessory dwelling unit in Berkeley?
What are backyard accessory dwelling units in Berkeley?
What is the process for ADU permits in Berkeley?
What are accessory dwelling unit homes in Berkeley?
How can I get an ADU estimate in Berkeley?
Also serving nearby: Richmond · Oakland · Daly City · Vallejo · Concord
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Berkeley — population 118,962; about 11,403 residents per square mile across 10.4 sq mi. ZIP codes covered include 94701, 94702, 94703, 94704, 94705, 94707, 94708, 94709.
Neighborhoods served in Berkeley: North Berkeley, South Berkeley, West Berkeley, Gourmet Ghetto, Ocean View, Elmwood — and every surrounding area.
Areas we serve
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