Detached ADU near San Marcos, CA
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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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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Modern Granny Flat San Diego
5727 Adelaide Avenue, San Diego, CA 92115
26.7 miles
ModernGrannyFlat is San Diego's ADU & granny flat specialist, offering eco-friendly, affordable accessory dwelling units. Services include garage conversions, detached ADUs, & JADUs, guiding homeowners through design, permits & construction under California ADU laws.
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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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More Concrete Inc.
San Diego, CA 92101
27.6 miles
More Concrete Inc. is a licensed, bonded ADU contractor in San Diego specializing in concrete foundations for detached ADUs, in-law suites, and home offices, helping homeowners expand living space and increase property value.
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Mastercraft Home Improvement
2227 Faraday Avenue, Carlsbad, CA 92008
8.7 miles
Mastercraft Home Improvement offers expert ADU construction services, including granny flats, garage conversions & in-law suites. Boost property value by 10–25%, earn rental income & add flexible living space with a trusted ADU contractor.
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ADU Of Oceanside
5074 Gold Drive, Oceanside, CA 92057
11 miles
ADU Of Oceanside is a full-service accessory dwelling unit builder in Oceanside, CA, handling design, permitting, and construction. Led by UC Berkeley-certified owner Colin Pond, they specialize in detached ADUs, granny flats, and garage conversions.
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Antoon Construction Services, Inc.
10620 Treena Street, San Diego, CA 92131
15.9 miles
Antoon offers a structured ADU construction process in San Diego, covering consultation, design, permitting, and build. With transparent pricing, quality control, and post-construction support, they deliver high-quality accessory dwelling units.
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Suncoast Construction Inc.
428 Sleeping Indian Road, Vista, CA 92057
10.1 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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Nucave Construction Inc.
440 South Melrose Drive, Vista, CA 92081
5.9 miles
Experienced ADU contractor offering a structured process: site assessment, custom design options, transparent cost estimates, permit guidance, and financing support. Specializing in detached ADUs, garage conversions, and in-law suites.
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Snap ADU
1223 Cleveland Avenue, San Diego, CA 92103
26.7 miles
SnapADU is San Diego's largest detached ADU design-build company, completing 100+ builds with a 4.9+ rating. They offer in-house design, permitting, and construction with fixed pricing across San Diego County.
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Tate & Son, Inc.
8865 Calle Perico, San Diego, CA 92129
11.9 miles
Tate & Son, Inc. is a licensed ADU contractor in San Diego & Southern California. They offer garage conversions, in-law suites & detached ADUs. Pricing starts ~$70K. 5-year warranty. Free estimates available.
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First Choice Home Builders
10620 Treena Street, San Diego, CA 92131
15.9 miles
First Choice Home Builders is a licensed San Diego ADU contractor with 15+ years of experience. They offer full-service ADU construction, including detached ADUs, garage conversions, and JADUs, with permit handling and flexible financing options.
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Musick Construction Inc.
1818 Peacock Boulevard, Oceanside, CA 92056
7.9 miles
Musick Construction Inc. offers ADU construction services including new builds and conversions like garage and basement conversions. They handle permits, design, and finishes for granny flats, in-law suites, and rental units.
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Murray Lampert Design, Build, Remodel
2851 Camino del Rio South, San Diego, CA 92108
25.3 miles
Murray Lampert, San Diego's trusted ADU builder since 1975, offers full design-build services including granny flats, in-law suites, and garage conversions. With 50+ years of experience, they deliver custom, high-quality accessory dwelling units tailored to your needs.
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What you need to know
Searching for top Detached 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 Detached 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 Detached 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 Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Detached ADU ADU Contractors in San Marcos, California, and get started today.