Attached ADU near Lake Forest, CA
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 suites, and backyard cottages.
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Block Contracting
4268 Bonita Dr, Oceanside, CA 92056
39.9 miles
Block Contracting specializes in crafting the best Accessory Dwelling Units (ADUs) in Oceanside, CA. Our designs are meant to enhance your property’s value and functionality. Whether you’re seeking a modern guest house, a stylish rental unit, pool house, or a versatile space for family.
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Fontana General Contractors
14189 Foothill Boulevard, Fontana, CA 92335
32.4 miles
Fontana General Contractors builds custom ADUs, including detached units, garage conversions, and in-law suites. They handle permits, zoning, and full construction management, helping property owners add value and flexible living space.
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THE ADU BUILDER INC
3639 Atlantic Avenue, Long Beach, CA 90807
31.4 miles
Los Angeles ADU contractor The ADU Builder offers 10+ years of experience in ADU construction, garage conversions, JADUs, custom homes & remodels. They guide clients through design, permits, financing & building with quality craftsmanship.
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Doran Construction
1041 N Cypress St, La Habra, CA 90631
26 miles
At Doran Companies LLC, we specialize in creating accessory dwelling units (ADUs) that are not just spaces, but extensions of your home’s character. Whether you’re considering garage conversions, new construction, or in-law suites, our expertise ensures a seamless blend of functionality and aesthetics.
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La Tour Builders
23362-G Via Fabricante, Mission Viejo, CA 92691
2.6 miles
La Tour Builders offers expert ADU construction in Laguna Niguel, CA, including garage conversions, detached units & attached additions. Licensed, insured & code-compliant, they help homeowners add rental income or multigenerational living space.
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ADU Certified
4401 Atlantic Avenue, Long Beach, CA 90807
31.4 miles
ADU Certified is a Long Beach, CA contractor specializing in ADU planning, permitting & construction since 2000. Services include garage conversions, detached ADUs, kitchen & bathroom remodeling throughout Southern California.
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Suncoast Construction Inc.
428 Sleeping Indian Road, Vista, CA 92057
36.3 miles
Suncoast Construction Inc. is a licensed ADU contractor in Oceanside, CA, building detached ADUs, garage conversions, JADUs & attached units per Oceanside's 2022 ADU Ordinance. No short-term rentals permitted.
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John Christopher Construction
2246 Newport Blvd Unit A, Costa Mesa, CA 92627
13.1 miles
John Christopher Construction is a Southern California general contractor specializing in ADU design and building. Serving Huntington Beach, Newport Beach, Costa Mesa & more, they offer custom and pre-engineered ADU plans for rental units, in-law suites & more.
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Custom Home Builders Malibu
42400 Winchester Road, Temecula, CA 92590
33.8 miles
Custom Home Builders Malibu specializes in ADU construction, backyard Casitas & granny flats. They offer turnkey design-build services, handling permits & compliance with California ADU laws for legal, independent living spaces.
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ADU Builders CA
6464 Sunset Boulevard, Los Angeles, CA 90028
48.4 miles
ADU Builders is a licensed Los Angeles ADU contractor with 15 years of experience. They offer detached, attached, garage conversion, and JADU construction, managing permits, design, and inspections per California ADU building codes.
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ADU Custom Homes
1420 East Katella Avenue, Orange, CA 92867
16.6 miles
ADU Custom Homes is a licensed California ADU contractor with 35+ years of experience serving LA, Orange & Riverside counties. They specialize in detached ADUs, garage conversions & additions, managing projects from permits to Certificate of Occupancy.
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High Power Construction
3201 N Alameda St Suite E, Compton, CA 90222
35.7 miles
High Power Construction, based in Compton, CA, offers ADU contractor services including detached units, garage conversions, granny flats, and in-law suites. Serving the greater Los Angeles area with quality craftsmanship.
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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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Doza Build
1680 Camino Real, San Bernardino, CA 92408
38.6 miles
Doza Build Inc. serves San Bernardino & Riverside County, CA, with 30+ years in construction. Services include ADU construction, garage conversions, remodeling, plumbing, electrical, flooring & more. Free estimates available.
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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.