Attached ADU near San Marcos, CA
Ruland Design Group
3245 University Avenue, San Diego, CA 92104
26.9 miles
Ruland Design Group offers expert ADU design services in San Diego, including garage conversions, detached ADUs, JADUs & more. With 600+ completed designs, they guide clients from concept to permit-ready plans.
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The Avalon Comany
3911 N Cordoba Ave Suite 6, Spring Valley, CA 91977
29 miles
Homeowners across the San Diego area looking to expand their living space or create a rental opportunity turn to the trusted San Diego Builders at The Avalon Company. With more than three decades of experience, we specialize in designing and constructing high end accessory dwelling units that blend seamlessly with your existing property while increasing functionality and property value.
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ADU San Diego
1223 Cleveland Avenue, San Diego, CA 92103
26.7 miles
ADU San Diego is a licensed contractor specializing in accessory dwelling unit design and construction across San Diego County. Services include garage conversions, detached ADUs, and JADUs, with costs ranging from $100,000–$400,000.
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Doza Build
1680 Camino Real, San Bernardino, CA 92408
9.6 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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Block Contracting
4268 Bonita Dr, Oceanside, CA 92056
7.1 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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Hubbell & Hubbell Architects, Inc.
1970 Sixth Avenue, San Diego, CA 92101
27.8 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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Green Room Design-Build
136 North Acacia Avenue, Solana Beach, CA 92075
11.3 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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ADU Gurus
450 South Melrose Drive, Vista, CA 92081
5.9 miles
ADU Gurus™ is a California ADU builder since 2020, offering full-service design, permitting, and construction for granny flats, garage conversions, JADUs, and detached ADUs up to 1,200 sq ft on single-family and multi-family lots.
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Get Approved ADU
152 West Park Avenue, El Cajon, CA 92020
26.3 miles
GetApprovedADU is a consulting firm specializing in ADU and JADU approvals. They assist with detached ADUs, garage conversions, granny flats, and attached units, helping homeowners boost property value and expand affordable housing options.
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Pinnacle Construction
6132 Innovation Way, San Diego, CA 92009
4.9 miles
Pinnacle Construction Services Inc. offers expert metal stud framing and drywall for ADU projects in San Diego County, including detached ADUs, garage conversions, and attached additions, with 30+ years of subcontracting experience.
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West Coast Building and Design
9511 Nicole Way, Santee, CA 92071
22.5 miles
West Coast Building and Design builds ADUs in California, including granny flats, garage conversions, and detached units. They help homeowners boost property value, house family members, or earn rental income through structured, process-driven construction.
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Millan Construction, Inc
325 West Washington Street, San Diego, CA 92103
26.6 miles
Millan Construction builds custom ADUs in San Diego, offering full-service design, permitting, and construction. With 14+ years of experience, they deliver compliant, high-quality accessory dwelling units that boost property value and rental income.
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SD Build Co
4015 Park Boulevard, San Diego, CA 92103
26.6 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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ADUs & Garage Conversions | Sprawl Design
1893 Lorient Place, Chula Vista, CA 91913
36.8 miles
Sprawl-Design offers expert ADU design in San Diego, including garage conversions, attached & detached units. Starting from $60K, they manage design to construction with local expertise & budget clarity.
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SDS Homes
42400 Winchester Road, Temecula, CA 92590
25.5 miles
SDS Homes Construction is a Temecula, CA design-build contractor specializing in ADUs, granny flats, and Casitas. They offer turnkey services from design to permitting and construction, serving Temecula and Murrieta homeowners.
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Other cities in California
What you need to know
Searching for top Attached ADU ADU Contractors in San Marcos, 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 San Marcos 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.
San Marcos 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 San Marcos, California, and get started today.