ADU Construction in Sacramento

An ADU (Accessory Dwelling Unit) is a secondary residential unit built on a single-family property. It can be attached to your existing home, built as a standalone structure in the backyard, or converted from a garage. Sacramento homeowners are building ADUs at a record pace — and for good reason.

Whether the goal is generating rental income, increasing property value, housing aging parents, or providing a private space for adult children, an ADU in Sacramento delivers on all fronts. California has streamlined ADU regulations to address the state's housing shortage, which means fewer obstacles, faster approvals, and more flexibility for homeowners.

At Keystone Building Services, we build both attached and detached ADUs across the Sacramento region. Attached ADUs start at $50,000 and up, while detached ADUs start at $120,000 and up, depending on size, finishes, and site conditions. Every project includes full permit navigation — Gerardo and his team handle applications, plan submissions, city reviews, and inspections so you never have to step foot in a permitting office.