ADU & In-law Construction
ADU Builders in Berkeley, Oakland, Kensington, Albany, El Cerrito & Richmond
Keene Builders constructs fully permitted Accessory Dwelling Units (ADUs) and in-law suites across the East Bay. We build detached ADUs, attached units, and garage conversions with complete kitchens, bathrooms, utilities, and private entrance, ideal for rental income, guest housing, or multigenerational living.
ADU Construction, Permits & Green Halo Compliance
We assist with all phases of the ADU permit submission and approval process and manage Green Halo compliance requirements. Working from approved plans, our team handles site preparation, foundation, framing, electrical, plumbing and finish details to deliver professionally built, move-in-ready secondary units.