OC Master ADU Construction

809 East Katella Avenue, Orange, CA 92867 26.7 miles

OC Master ADU Construction builds ADUs across Orange County, offering detached units, garage conversions, JADUs & attached additions. Services include design, permitting & full construction management for rental income or family housing.

CCS Inc

16906 Burbank Boulevard, Los Angeles, CA 91316 12.1 miles

Licensed 41 years in business

CCS Inc (CSLB #B1047699) is a licensed LA general contractor since 1984 specializing in ADU construction, garage conversions, and room additions. They manage design, permitting, and build, with ADUs generating up to $3,500/month rental income.

Molinar Design

1132 Spence Street, Los Angeles, CA 90023 12.5 miles

Licensed Eco-Friendly

Molinar Design is a licensed design-build firm in Los Angeles offering ADUs, garage conversions, custom homes, remodeling, commercial architecture, permit packages, and fire & water damage restoration across Los Angeles County.

Builderwell

9641 Irvine Center Drive, Irvine, CA 92618 36.4 miles

Luxury Builds

Builderwell is an ADU contractor in Orange County, CA, offering full-service design-build solutions for custom accessory dwelling units, including guest houses, in-law suites, and rental units across Irvine, Newport Beach, and Laguna Hills.

K&S Design Build

11115 Aqua Vista Street, Los Angeles, CA 9160 15.1 miles

K&S Design Build specializes in ADU construction and garage conversions, offering full design-build services from concept to completion. They handle permits, city regulations, and create granny flats, in-law suites, backyard cottages, and rental units.

Cali ADU

3705 W Pico Blvd, Ste 1635, Los Angeles, CA 90012 13.7 miles

Cali ADU is a top Los Angeles ADU builder offering custom and pre-designed accessory dwelling units, garage conversions, and granny flats. Fixed pricing, fast permitting, and expert project management ensure stress-free builds from design to move-in.

RnD Builders Inc

21250 Califa Street, Woodland Hills, CA 91367 27.7 miles

RnD Builders is a top-rated ADU builder and design-build firm serving Ventura County and Los Angeles County, specializing in ADU construction, home additions, remodels, and outdoor projects with a client-focused approach.

Pomona General Contractors

3191 W Temple Ave Suite 130, Pomona, CA 91768 17.2 miles

Eco-Friendly

Pomona General Contractors offers ADU construction in Pomona, including detached ADUs, attached ADUs, and garage conversions. Services cover permitting, 3D design, energy-efficient builds, and full construction management for granny flats, in-law suites, and backyard cottages.

Golden ADU

640 S Curson Ave #603, Los Angeles, CA 90036 17.8 miles

4 years in business Luxury Builds

Golden ADU, serving Southern California since 2021, specializes in custom ADU construction including garage conversions and detached backyard cottages. They offer flexible financing with no upfront costs, completing most projects in 6–12 months.

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What you need to know

Searching for top Detached ADU ADU Contractors in San Marino, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Detached ADU ADU Contractor in San Marino ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Detached ADU professionals can guide you through every step.

San Marino homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.

Browse our listings to find the best Detached ADU ADU Contractors in San Marino, California, and get started today.

Detached ADU near San Marino, CA