ADU Builders in Orange, California
Families across Orange are using accessory dwelling units to solve multigenerational living and generate rental income. As full-service ADU builders, we take Orange projects from feasibility to final inspection — designed for the ocean breezes near the coast and warmer foothill valleys.
Typical cost
$192k–$434k
Permit time
6–10 weeks
Est. rent
$2,300+/mo
Population
138,000
Popular ADU types in Orange
Our most requested projects in Orange are prefab and modular ADUs and attached ADUs. Newer subdivisions in Orange often have tighter side yards, so we frequently recommend attached ADUs or converting an existing garage to keep costs down.
Design-wise, Orange homeowners in the Orange County tend to favor clean coastal contemporary and Mediterranean styles that satisfy HOA-minded neighbors.
Building an ADU in Orange County
Every Orange ADU we build is engineered around local conditions — especially HOA covenants, coastal commission review and tract-home utility layouts. We prepare complete plan sets so the city can approve within the state's 60-day review window, typically 6–10 weeks here.
At $2,300–$3,750 per month in rent, a new ADU in Orange can pay for itself in roughly 8.6 years.
Orange ADU FAQs
How much does it cost to build an ADU in Orange?
Most Orange ADUs we build land between $192k and $434k, 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 Orange?
State law requires cities to act on complete ADU applications within 60 days. In practice, Orange 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 Orange?
Based on Orange County rental trends, a new 1-bedroom ADU in Orange commonly rents for $2,300–$3,750 per month, putting typical payback around 8.6 years.
What are the biggest challenges for ADUs in Orange?
In Orange and the wider Orange County, the issues we plan around most are HOA covenants, coastal commission review and tract-home utility layouts. We review these during a free feasibility check before you commit.
Is prefab and modular ADUs a good option in Orange?
Yes — prefab and modular ADUs are among the most popular projects we build in Orange. Corner lots and alley-access lots in Orange are ideal for ADUs with their own street entrance and separate address.
ADU builders near Orange
Get a free ADU feasibility check in Orange
Tell us about your lot. We'll review zoning, setbacks and utilities and send a ballpark budget — no obligation.