ADU Contractors near San Diego, CA
San Diego Granny Flat ADU Builders Construction
1200 Paseo Magda, Chula Vista, CA 91910
14.8 miles
Family-owned Home Kitchen Bath Remodeling of San Diego offers 20+ years of expert kitchen, bathroom, ADU, flooring, and interior remodeling services. Competitive pricing, 3D design, guaranteed completion dates, and financing options available.
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Elevated Remodeling
San Diego, CA 92101
6.8 miles
Elevated Remodeling is a San Diego ADU contractor since 2007, specializing in detached ADUs, garage conversions, casitas & granny flats. Services include JADUs, in-law suites & home additions, with full permitting support.
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ADU Gurus
450 South Melrose Drive, Vista, CA 92081
25.9 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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Temecula ADU Builders
45033 Putting Green Court, Temecula, CA 92592
44.4 miles
Temecula ADU Builders is a local ADU contractor helping homeowners add accessory dwelling units, including detached ADUs, garage conversions, and granny flats, for rental income, family housing, or tax benefits in Temecula, CA.
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Streamline Design Group
500 La Terraza Boulevard, Escondido, CA 92025
19.5 miles
Streamline Design Group offers ADU design and permitting in San Diego, covering detached, attached, JADU, garage conversions, and multi-family units. Referenced in the State ADU handbook, they deliver permit-ready plans at 40–60% less than architect fees.
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SD Build Co
4015 Park Boulevard, San Diego, CA 92103
5.7 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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Fortune ADU
9810 Scripps Lake Drive, San Diego, CA 92131
5.5 miles
Fortune ADU is a Southern California ADU contractor offering full-service design, permitting, and construction. Services start at $3,999.99, covering detached ADUs, JADUs, garage conversions, and more, with most projects completed in 6–12 months.
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3 Day Kitchen & Bath
10620 Treena Street, San Diego, CA 92131
5.5 miles
3 Day Kitchen & Bath is a trusted ADU contractor in San Diego offering full-service accessory dwelling unit construction. From garage conversions to detached ADUs, they manage every project phase with a structured, professional approach.
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CSL Quality Construction
659 3rd Avenue, Chula Vista, CA 91910
14.2 miles
CSL Quality Construction is a trusted ADU contractor in San Diego County, offering full-service design, permits, construction, and renovations. ADUs can boost property value by 20–30% and generate rental income.
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Just ADUs
979 Palm Valley Circle, Chula Vista, CA 91915
13.8 miles
Just ADUs is San Diego's top award-winning ADU contractor with 20+ years experience. They build custom ADUs, garage conversions & granny flats. Projects range $100K–$300K, taking 6–12 months, with full permitting support included.
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Gary Faith Construction
7313 Carroll Canyon Road, San Diego, CA 92121
4.5 miles
Gary Faith Construction is a licensed ADU contractor in San Diego specializing in detached ADUs, garage conversions, and above-garage units. Serving San Diego County, they manage projects from consultation to completion, ensuring full compliance with local zoning laws.
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Modulart
11300 Sorrento Valley Road, San Diego, CA 92121
8.1 miles
ADU Company San Diego County specializes in off-site ADU construction, offering efficient, affordable accessory dwelling units. From granny flats to detached ADUs, their expert team guides clients from concept to Certificate of Occupancy.
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Organic ADU
4432 Ingraham Street, San Diego, CA 92109
8.5 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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TNT Design & Build
3142 Tiger Run Court, Carlsbad, CA 92010
26.1 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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ADU Geeks
2835 Camino del Rio South, San Diego, CA 92108
4.2 miles
ADU Geeks is a full-service ADU contractor offering planning, design, permitting, and build support. They also provide a $150 online ADU Development Masterclass covering feasibility, financing, and construction, ideal for California homeowners and investors.
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Other cities in California
What you need to know
ADU Contractors in San Diego: Navigating California's Most ADU-Friendly City
San Diego has become one of the most active markets for Accessory Dwelling Units (ADUs) in the entire state of California. Thanks to its high property values, year-round desirable climate, and a persistent housing shortage, homeowners across neighborhoods like North Park, Ocean Beach, and Chula Vista are turning to ADU contractors in San Diego to maximize their property's potential. The city has embraced state-level ADU reform laws, making it easier than ever to build a secondary unit on your property.
San Diego ADU Regulations You Need to Know
Working with an experienced San Diego ADU contractor is essential because local regulations can be complex. San Diego follows California state law, which allows ADUs on most single-family and multi-family residential lots. Key rules include:
- ADUs can be up to 1,200 square feet for detached units
- Junior ADUs (JADUs) are limited to 500 square feet and must be within the existing home's footprint
- Setback requirements are generally 4 feet from rear and side property lines for detached ADUs
- Owner-occupancy requirements were suspended under recent California law, giving landlords more flexibility
- ADUs under 750 square feet are exempt from impact fees in San Diego
The Permitting Process for ADUs in San Diego
San Diego has streamlined its ADU permitting process through the Development Services Department (DSD). The city offers pre-approved ADU plans, which can significantly reduce approval timelines. A qualified ADU builder in San Diego will handle the permit application, architectural drawings, structural engineering, and coordination with city inspectors. Typical permit approval times in San Diego range from a few weeks for pre-approved plans to several months for custom designs.
What to Expect When Hiring ADU Contractors in San Diego
Choosing the right contractor is critical to a successful ADU project. Reputable ADU contractors in San Diego will offer end-to-end services, including design, permitting, construction, and final inspection. When evaluating contractors, look for:
- A valid California Contractor's License (CSLB)
- Experience with San Diego's specific zoning and building codes
- A portfolio of completed ADU projects in the San Diego area
- Transparent pricing and detailed project timelines
- Strong local references and verified online reviews
ADU Costs and ROI in San Diego
The cost to build an ADU in San Diego typically ranges from $150,000 to $350,000 or more, depending on size, type, and finishes. However, given San Diego's strong rental market — with average rents among the highest in California — homeowners can often see a strong return on investment. A well-built ADU can generate $1,500 to $3,000+ per month in rental income, making it a smart long-term investment in one of America's most competitive real estate markets.