Accessory Dwelling Unit (ADU) Construction in the San Francisco Bay Area
Pinnacle Construction provides reliable ADU construction services across San Francisco and the Bay Area. Whether you are building a backyard cottage, converting a garage, or adding an in-law unit, our team delivers solid residential construction with clear communication and a smooth workflow. We collaborate with homeowners, architects, and engineers to turn approved ADU plans into durable, well-built living spaces.
Our goal is to create a finished ADU that feels integrated, comfortable, and built to last.
Experienced ADU Contractor in the Bay Area
ADU projects often involve structural changes, foundation adjustments, utility upgrades, and detailed coordination with permitting and inspections. As a licensed general contractor, we handle the construction phase from start to finish: managing subcontractors, trade scheduling, access, delivery timing, quality control, and inspection scheduling.
We prioritize efficiency, clean workmanship, and respect for your property throughout the entire construction process.
Our ADU Construction Services Include
Detached backyard ADUs
Attached and interior ADUs
Garage and basement conversions
Structural framing and foundation work
Plumbing, electrical, and HVAC installation
Insulation, drywall, painting, and finish carpentry
Roofing, windows, siding, and exterior finishes
Why Homeowners Choose Pinnacle Construction
Licensed and insured general contractor serving San Francisco and the surrounding Bay Area cities
Experienced with structural modifications and multi-phase residential construction
Clear communication, organized timelines, and steady progress updates
Professional coordination with engineers, architects, and city inspectors
Craftsmanship focused on long-term quality and everyday comfort
Create a Space That Works for Your Home
An ADU can provide long-term value, flexible living options, and additional income potential. Whether you are planning a private guest suite, extended family housing, or a rental unit, our team provides careful construction and dependable service at every stage of the process.