ADU Builders in Chino Hills, California
Families across Chino Hills are using accessory dwelling units to solve multigenerational living and generate rental income. As full-service ADU builders, we take Chino Hills projects from feasibility to final inspection — designed for the hot, dry summers where cooling loads drive design.
Typical cost
$152k–$333k
Permit time
4–8 weeks
Est. rent
$1,700+/mo
Population
78,000
Popular ADU types in Chino Hills
Our most requested projects in Chino Hills are prefab and modular ADUs and attached ADUs. Newer subdivisions in Chino Hills often have tighter side yards, so we frequently recommend attached ADUs or converting an existing garage to keep costs down.
Design-wise, Chino Hills homeowners in the Inland Empire tend to favor stucco-and-tile ranch styles, cool roofs and shaded patios.
Building an ADU in San Bernardino County
Every Chino Hills ADU we build is engineered around local conditions — especially summer heat, larger lots with long utility runs and wildfire zones. We prepare complete plan sets so the city can approve within the state's 60-day review window, typically 4–8 weeks here.
At $1,700–$2,650 per month in rent, a new ADU in Chino Hills can pay for itself in roughly 9.3 years.
Chino Hills ADU FAQs
How much does it cost to build an ADU in Chino Hills?
Most Chino Hills ADUs we build land between $152k and $333k, 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 Chino Hills?
State law requires cities to act on complete ADU applications within 60 days. In practice, Chino Hills permits typically take 4–8 weeks when plans are submitted complete — which is what our in-house drafting team focuses on.
What can I rent an ADU for in Chino Hills?
Based on Inland Empire rental trends, a new 1-bedroom ADU in Chino Hills commonly rents for $1,700–$2,650 per month, putting typical payback around 9.3 years.
What are the biggest challenges for ADUs in Chino Hills?
In Chino Hills and the wider Inland Empire, the issues we plan around most are summer heat, larger lots with long utility runs and wildfire zones. We review these during a free feasibility check before you commit.
Is prefab and modular ADUs a good option in Chino Hills?
Yes — prefab and modular ADUs are among the most popular projects we build in Chino Hills. Corner lots and alley-access lots in Chino Hills are ideal for ADUs with their own street entrance and separate address.
ADU builders near Chino Hills
Get a free ADU feasibility check in Chino Hills
Tell us about your lot. We'll review zoning, setbacks and utilities and send a ballpark budget — no obligation.