Adu near me — 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.
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Frequently asked in Berkeley
What are the affordable ADU options in Berkeley?
What is the ADU cost in Berkeley?
The ADU cost in Berkeley is influenced by several factors, including the size of the unit, the complexity of the design, and the materials chosen for finishes. Site preparation, foundation type, and utility connections also contribute significantly to the overall expense. Given Berkeley's specific building codes and material costs, it's essential to get a detailed quote from a qualified professional. We can arrange this for you.
What is the accessory dwelling unit permit cost in Berkeley?
Who are the best accessory dwelling unit builders near me in Berkeley?
What are the accessory dwelling unit services offered in Berkeley?
What is an accessory dwelling unit?
An accessory dwelling unit (ADU) is a secondary housing unit on a single-family residential lot. In Berkeley, this can be a detached backyard cottage, an apartment above a garage, or an interior conversion. ADUs provide additional living space for family members, renters, or as a home office. Local zoning ordinances define the specific requirements and limitations for ADUs in Berkeley.
What are modular accessory dwelling units?
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: Gourmet Ghetto, North Berkeley, Elmwood, South Berkeley, West Berkeley — and every surrounding area.
Areas we serve
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