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Attached ADU near Whittier, CA
Beach Builders Custom Homes
13001 Seal Beach Boulevard, Seal Beach, CA 90740 13.9 milesBeach Builders Custom Homes offers full-service ADU and garage conversion services in Los Angeles and Orange County. From permits to construction, they build granny flats, backyard cottages, and JADUs with smart home tech, earning homeowners $1,200–$1,600/month.
read moreVision Home Remodeling
7717 Owensmouth Avenue, Canoga Park, CA 91304 37.1 milesVision Home Remodeling Inc. offers full-service ADU construction in Los Angeles, including detached units, attached dwellings, casitas, and rental-ready granny flats. Services cover design, permitting, and ground-up builds tailored to LA zoning laws.
read moreUNI Construction
1142 South Diamond Bar Boulevard, Diamond Bar, CA 91765 12.6 milesUNI Construction builds detached and attached ADUs, handling site planning, structural engineering, and permit-ready drawings. Options include backyard cottages, granny flats, and in-law suites, all code-compliant and tailored to your property.
read moreBela Development
1023 Abbot Kinney Boulevard, Venice, CA 90291 25.9 milesBela Development is an LA-based design-build firm with 15+ years specializing in ADU construction, garage conversions, detached ADUs, and JADUs. They manage design, permitting, and build under one roof, delivering legal living spaces that boost property value by 20–30%.
read moreOtto ADU
2926 Denby Avenue, Los Angeles, CA 90039 17.7 milesOtto ADU is a licensed Los Angeles ADU builder specializing in garage conversions, detached ADUs, JADUs & granny flats. Serving LA County with 100+ completed units, adding avg. $185K in home value.
read morePerfect ADU & Remodeling Inc
21700 Golden Triangle Road, Santa Clarita, CA 91350 41.9 milesPerfect ADU & Remodeling Inc specializes in ADU construction, including detached ADUs and garage conversions. Services cover design, permitting, and build. ADUs boost property value, enable rental income, and support multi-generational living.
read moreADU Palmdale
550 West Rancho Vista Boulevard, Palmdale, CA 93551 44.4 milesADU Palmdale builds Accessory Dwelling Units in Palmdale, CA & greater LA. Services include garage conversions, detached ADUs & attached units. Free estimates available for rental income, multigenerational living & property value growth.
read moreADU by Kn Remodeling
19709 Ventura Boulevard, Woodland Hills, CA 91364 35 milesKN Remodeling is a certified ADU contractor serving Los Angeles, Woodland Hills, Simi Valley & Thousand Oaks. Specializing in detached ADUs, attached ADUs & garage conversions, they handle design, permits & construction with 100+ ADU plans completed.
read moreGo Home Builders
15132 Ventura Boulevard, Sherman Oaks, CA 91403 27.8 milesPotato Construction
8326 East Valley Boulevard, Rosemead, CA 91770 8.7 milesPotato Construction Inc., based in Rosemead, CA, is a licensed ADU contractor with 15+ years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs across the San Gabriel Valley and greater Los Angeles area.
read moreBuildoly
915 Wilshire Blvd, Los Angeles, CA 90017 15 milesBuildoly is an ADU contractor offering full-service construction for detached ADUs, garage conversions, granny flats, JADUs, and backyard cottages. They manage design, permitting, and building, helping homeowners add rental income or family housing.
read moreBaum Construction & Development Inc
2900 Fidler Avenue, Long Beach, CA 90815 13.7 milesADUs (accessory dwelling units) are self-contained homes on existing properties, ideal for rentals or multi-generational living. Costs range $100K–$200K. Baum Construction & Development Inc builds ADUs in Long Beach, CA.
read moreORR Construction
1977 Obispo Avenue, Signal Hill, CA 90755 14 milesADUs 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.
read moreOC Builders Group
600 West Santa Ana Boulevard, Santa Clara, CA 92701 17.4 milesOC Builders Group specializes in ADU construction in California, offering detached ADUs, garage conversions, granny flats & in-law suites. They help homeowners navigate permits, zoning & state regulations to add rental income or housing value.
read moreOther cities in California
- Agoura Hills
- Alameda
- Albany
- Anaheim
- Antioch
- Anza
- Aptos
- Arcata
- Atascadero
- Bakersfield
- Banning
- Bellflower
- Berkeley
- Beverly Hills
- Bonita
What you need to know
Searching for top Attached ADU ADU Contractors in Whittier, 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 Whittier 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.
Whittier 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 Whittier, California, and get started today.