Attached ADU near Lake Forest, CA
Avorino
360 E 1st St #355, Tustin, CA 92780
10.4 miles
Avorino specializes in ADU construction, offering detached, attached, garage conversion, and above-garage units. Projects range from $250K–$400K, covering design, permitting, and build phases over 10–14 months.
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Ataman Studio
13151 Fountain Park Drive, Los Angeles, CA 90094
48.7 miles
Ataman Studio is a trusted ADU contractor in Los Angeles, serving all of California. Full-service design, permitting, and construction for detached ADUs, garage conversions, and in-law units, with compliance to local zoning and state regulations.<... read more
LA Developing Inc.
8504 Firestone Boulevard, Downey, CA 90241
32.5 miles
An Accessory Dwelling Unit (ADU) adds value, rental income, and flexibility to your property. LA Developing Inc. specializes in ADU construction in Los Angeles, offering garage conversions, detached builds, and attached additions with full project... read more
ORR Construction
1977 Obispo Avenue, Signal Hill, CA 90755
29.6 miles
ADUs are secondary units built on existing lots. ORR Construction builds detached ADUs, garage conversions, JADUs & in-law suites in California. Costs range $50–$300/sq ft. California laws like SB 897 simplify the permitting process.
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BNC Builders Inc.
101 State Place, Escondido, CA 92029
49.3 miles
BNC Builders Inc. is a San Diego County ADU contractor offering detached, attached, garage conversion & JADU construction. Services include permit management, custom design & financing assistance.
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Stephens Brothers Construction
31779 Fallbrook Circle, Murrieta, CA 92563
31 miles
Stephens Brothers Construction is Temecula & Murrieta's top ADU builder since 2011, offering detached ADUs, JADUs, garage conversions & casitas. Costs from $300–$350/sq ft. Licensed, hands-on, and serving all of Riverside County.
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The Sterling-Watson Collective
1441 Huntington Dr, 1900, South Pasadena, CA 91030
41.2 miles
Sterling-Watson Collective is a full-service ADU contractor in Los Angeles offering design, permitting, structural engineering & construction management for accessory dwelling units, helping homeowners add rental units, guest suites & more... read more
Saunders Construction Renovation Inc
2463 W Carson Street, Torrance, CA 91310
39 miles
Saunders Construction Renovation Inc offers ADU construction in Torrance, Redondo Beach & Palos Verdes Peninsula. Services include detached ADUs, garage conversions & granny flats. BBB A+ rated South Bay contractor.
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Ohayon Construction
Los Angeles, CA 90012
42.6 miles
Ohayon Construction is a licensed Los Angeles ADU contractor since 2008. They build detached ADUs, garage conversions, attached ADUs & JADUs. Serving Beverly Hills, Santa Monica & more. Free consultation available.
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Pomona General Contractors
3191 W Temple Ave Suite 130, Pomona, CA 91768
28.7 miles
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 ... read more
R Remodeling
6745 Washington Avenue, Whittier, CA 90601
28 miles
R Remodeling is a trusted ADU contractor in Whittier, specializing in accessory dwelling units for added living space or rental income. Experienced in detached ADUs, they manage projects from consultation to completion with minimal property disrup... read more
Revival Homes
1150 South Olive Street, Los Angeles, CA 90015
42.8 miles
Revival Homes is a California ADU project manager handling planning, financing, design, permitting, and construction. They build detached ADUs, garage conversions, JADUs, and more, with costs ranging from $100K to $300K.
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Home Remodeling Center
830 Los Vallecitos Boulevard, San Marcos, CA 92069
45.8 miles
Home Remodeling Center in San Marcos offers custom ADU construction, kitchen, bathroom, and whole house remodels. From design to completion, they prioritize clear communication, budget transparency, and free consultations for granny flats, in-law ... read more
ADU Los Angeles
3744 Flower St, Los Angeles, CA 90007
43 miles
ADU Los Angeles (ADLA) is a specialized ADU contractor serving LA County. They offer consulting, custom design, construction, garage conversions, basement ADUs, attached and detached units, helping homeowners maximize property value.
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Blue Dog Construction
4199 Flat Rock Road, Riverside, CA 92505
19.6 miles
Other cities in California
What you need to know
Searching for top Attached ADU ADU Contractors in Lake Forest, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Attached ADU ADU Contractor in Lake Forest 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 Attached ADU professionals can guide you through every step.
Lake Forest homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in Lake Forest, California, and get started today.