Attached ADU near El Cajon, CA
DR Build ADU specialist
3635 Bonita Farms Court, Bonita, CA 91902
9.4 miles
Dr Build ADU Specialist's mission is to build affordable high-quality Accessory Dwelling Units (ADU’s/Granny Flats) that the average person can afford.
Always providing the best with our friendly, understanding, bilingual builders and sales personal.
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URBN BLDRS
4231 Balboa Ave, San Diego, CA 92117
14.7 miles
URBN BLDRS is a specialized ADU contractor helping homeowners plan and build accessory dwelling units. They offer expert guidance, dedicated project teams, and streamlined processes from consultation to construction completion.
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Lusso Design & Build
5425 Oberlin Drive, San Diego, CA 92121
15.3 miles
Lusso Design & Build is a licensed San Diego ADU contractor specializing in ADUs and JADUs. They handle design, permits, and construction, ensuring compliance with California regulations while helping homeowners add rental income or flexible living space.
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SD Build Co
4015 Park Boulevard, San Diego, CA 92103
11.3 miles
SD Build Co is an ADU builder in Imperial Beach, CA, offering full-scope construction services including detached ADUs, garage conversions & granny flats. They handle design, permits, zoning compliance & customization.
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TNT Design & Build
3142 Tiger Run Court, Carlsbad, CA 92010
32.6 miles
TNT Design & Build specializes in ADUs, garage conversions & room additions in San Diego's North County. 15 years experience, in-house management, free architectural design, prices from $325/sqft with guaranteed budget & timeline.
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Cabal Construction
7103 University Avenue, La Mesa, CA 91942
4.4 miles
Detached ADUs (backyard cottages, granny flats) are standalone units adding rental income, family housing, or workspace. Costs range $100K–$350K. Cabal Construction guides homeowners through design, permits, and construction.
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Block Contracting
4268 Bonita Dr, Oceanside, CA 92056
32.3 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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Oceanside ADU Design
3355 Mission Avenue, Aaronsburg, PA 92058
36.2 miles
Oceanside ADU Design is an Oceanside, CA firm specializing in detached, attached, garage conversion, and junior ADUs. Founded by structural engineer Devin, they handle architecture, engineering, and permitting in-house for efficient, budget-conscious results.
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Advance Construction Company
5073 Central Ave, Bonita, CA 91902
9.8 miles
Advance Construction Company is a San Diego-based ADU contractor and garage conversion specialist committed to excellence. Trusted by homeowners, they deliver seamless construction experiences with top-tier sub-contractors, ensuring quality results on every project.
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BNC Builders Inc.
101 State Place, Escondido, CA 92029
23.7 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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Hubbell & Hubbell Architects, Inc.
1970 Sixth Avenue, San Diego, CA 92101
14.3 miles
Accessory Dwelling Units (ADUs) add value and flexibility to California properties. Learn about ADU regulations, design options like garage conversions, and how Hubbell & Hubbell Architects can help you build a compliant granny flat or guest house.
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Organic ADU
4432 Ingraham Street, San Diego, CA 92109
13.4 miles
California ADUs (granny flats) add rental income or family housing to existing lots. Detached units up to 1,200 sq ft are allowed. Building costs start at $1,200/sq ft. Hire a specialized ADU contractor in San Diego for permits and zoning compliance.
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Green Room Design-Build
136 North Acacia Avenue, Solana Beach, CA 92075
22.4 miles
Solana Beach is a beautiful coastal community in the City of San Diego, where property values and flexible living are priced at a premium. An accessory dwelling unit (ADU) provides you with the opportunity to take advantage of this by increasing your home’s square footage, generating rental income, and increasing the value of your property.
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Lunasol construction
5857 Owens Avenue, Carlsbad, CA 92008
28.9 miles
Lunasol Construction is a San Diego ADU contractor specializing in detached ADUs, garage conversions, and JADUs. They offer custom designs for in-law suites, rental units, and granny flats, helping homeowners add value and living space.
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Lumina Builders Inc.
4901 Morena Boulevard, San Diego, CA 92117
15.7 miles
Lumina Builders Inc. follows a 5-step remodeling process: consultation, permits, design, construction, and quality check. Serving San Diego, they handle ADUs, garage conversions, and full home remodels with dedicated project management.
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Other cities in California
What you need to know
Searching for top Attached ADU ADU Contractors in El Cajon, 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 El Cajon 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.
El Cajon 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 El Cajon, California, and get started today.