ADU's

Building an Accessory Dwelling Unit (ADU) is one of the smartest ways to add space, increase property value, and create new income opportunities in the San Francisco Bay Area. At Villatoro & M Construction, Inc, we specialize in designing and constructing high-quality ADUs that meet California’s housing regulations and blend seamlessly with your property.

Whether you want a backyard cottage, garage conversion, in-law unit, or a rental studio, our team manages the entire process from start to finish — including design, permitting, and construction. We work closely with homeowners to maximize space, comply with building codes, and deliver a functional, modern living space tailored to your needs.

Our ADU's Construction Services

Custom ADU Design

Floor plans tailored to your property, lifestyle, and budget

Garage Conversions

Transform unused garages into beautiful living spaces

Detached & Attached ADUs

Backyard cottages, side units, or extensions

Permit & Code Compliance

Full guidance through city and county requirements

Turnkey Construction

From foundation to finishes, we handle it all

Energy-Efficient Builds

Sustainable materials and modern systems for long-term savings

Why Choose Us?

Licensed, Bonded, and Insured in California

Experienced team with a proven track record in residential projects

Knowledge of building codes, permitting, and seismic requirements

Commitment to quality, transparency, and customer satisfaction

Dedicated to safety, durability, and customer satisfaction

Serving the Bay Area

We proudly provide general contracting services in San Francisco, East Bay, South Bay, North Bay, Peninsula, Tri-Valley and surrounding communities.

We combine expertise in residential construction with a understanding of building codes, ensuring your ADU project is completed on time, on budget, and fully compliant. Build Smart. Build Local. Build Your ADU.