About Chino ADU Builder
A locally focused ADU contractor dedicated to one thing: helping Chino homeowners add value, income, and living space to their properties.
A locally focused ADU contractor dedicated to one thing: helping Chino homeowners add value, income, and living space to their properties.
Building ADUs in the Chino Valley means navigating two different permit jurisdictions — the City of Chino and the City of Chino Hills — plus the unique engineering requirements of San Bernardino County's hillside development standards. We've worked in both jurisdictions extensively and understand what it takes to get hillside lots through plan check cleanly.
Our service area covers Chino, Chino Hills, Ontario, Montclair, Diamond Bar, Pomona. We don't try to be everything to everyone across all of Southern California. We know these specific cities, their planning departments, their soil conditions, and their neighborhoods. That local knowledge is what keeps projects on schedule and on budget.
We are a full-service ADU design-build operation. That means we handle every phase of your project under one roof — from the first site assessment through final city inspection sign-off. The services we provide:
We serve Chino, Chino Hills, Ontario, Montclair, Diamond Bar, Pomona and the surrounding Chino Valley / Inland Empire West communities. Our service area is intentionally focused — we'd rather know one region deeply than spread thin across all of Southern California.
The best way to start is a free on-site consultation. We visit your property, assess your lot, and give you an honest picture of what's possible — including a realistic cost range and permit timeline — before you commit to anything.