HBC Construction ADU Builders Los Altos CA | Backyard ADU Construction HBC Construction, based in Los Altos and serving Palo Alto, Sunnyvale, Morgan Hill, Woodside, Redwood City, Walnut Creek, and Hayward, CA, specializes in ADU and new construction services. We are your trusted ADU builders near me, offering prefab ADU homes for sale, garage conversio... https://share.google/yIdyzOiarbI0BZYd5