ADU Builder in Chino Hills, California

Tucked into the rolling southwest corner of San Bernardino County where it meets Orange and Los Angeles counties, Chino Hills earned its nickname as a "City of Beautiful Homes" for good reason. Master-planned communities like Vellano, Butterfield Ranch, Rolling Ridge, and Payne Ranch are defined by generous lots, custom homes, and elevated view properties — exactly the kind of spacious backyards that make a detached ADU feel like a natural addition rather than a squeeze. Whether your property overlooks the fairways at Los Serranos or sits on a quiet cul-de-sac near English Springs, there's usually room to build a thoughtfully designed second home that respects the look and feel of the neighborhood.

ADU demand here is driven by the things that make Chino Hills special: high home values, excellent schools, and a strong tradition of multigenerational living. Many local families want a private, dignified space for aging parents or adult children — close enough for daily connection, separate enough for independence. Others see a detached unit as a way to generate steady rental income in one of the Inland Empire's most sought-after rental markets. With large single-family lots making up the overwhelming majority of the city's housing, most Chino Hills homeowners have real, buildable options for an attached ADU, a detached casita, or a garage conversion.

Backyard Estates is based just up the 71 and 60 in Upland, so Chino Hills is right in our backyard. We know the local terrain — from the flat, roomy lots of Los Serranos to the hillier parcels around Carbon Canyon — and we know how to design around slopes, views, and HOA expectations. As a true design-build partner, we handle architecture, 3D renderings, permitting through the city, and construction with a dedicated project manager from first sketch to certificate of occupancy. The result is a granny flat or guest house that looks like it always belonged on your lot.