ADU Builders in Concord, California
Families across Concord are using accessory dwelling units to solve multigenerational living and generate rental income. As full-service ADU builders, we take Concord projects from feasibility to final inspection — designed for the cool microclimates, fog belts and seismic activity.
Typical cost
$263k–$546k
Permit time
6–10 weeks
Est. rent
$2,750+/mo
Population
122,000
Popular ADU types in Concord
Our most requested projects in Concord are prefab and modular ADUs and attached ADUs. Newer subdivisions in Concord often have tighter side yards, so we frequently recommend attached ADUs or converting an existing garage to keep costs down.
Design-wise, Concord homeowners in the Bay Area tend to favor compact, light-filled modern designs that maximize small urban lots.
Building an ADU in Contra Costa County
Every Concord ADU we build is engineered around local conditions — especially seismic engineering, sewer lateral rules and high labor costs. We prepare complete plan sets so the city can approve within the state's 60-day review window, typically 6–10 weeks here.
At $2,750–$4,400 per month in rent, a new ADU in Concord can pay for itself in roughly 9.4 years.
Concord ADU FAQs
How much does it cost to build an ADU in Concord?
Most Concord ADUs we build land between $263k and $546k, depending on size, site work and finishes. Garage conversions sit at the low end; custom two-story units at the high end.
How long does ADU permitting take in Concord?
State law requires cities to act on complete ADU applications within 60 days. In practice, Concord permits typically take 6–10 weeks when plans are submitted complete — which is what our in-house drafting team focuses on.
What can I rent an ADU for in Concord?
Based on Bay Area rental trends, a new 1-bedroom ADU in Concord commonly rents for $2,750–$4,400 per month, putting typical payback around 9.4 years.
What are the biggest challenges for ADUs in Concord?
In Concord and the wider Bay Area, the issues we plan around most are seismic engineering, sewer lateral rules and high labor costs. We review these during a free feasibility check before you commit.
Is prefab and modular ADUs a good option in Concord?
Yes — prefab and modular ADUs are among the most popular projects we build in Concord. Corner lots and alley-access lots in Concord are ideal for ADUs with their own street entrance and separate address.
ADU builders near Concord
Get a free ADU feasibility check in Concord
Tell us about your lot. We'll review zoning, setbacks and utilities and send a ballpark budget — no obligation.