ADU Contractors near Spring Valley, CA
DR Build ADU specialist
3635 Bonita Farms Court, Bonita, CA 91902
4.5 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 sale... read more
Doza Build
1680 Camino Real, San Bernardino, CA 92408
37.1 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
35.8 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, ... read more
OneStop ADU
2667 Camino del Rio South, San Diego, CA 92108
9.6 miles
OneStop ADU is a San Diego County ADU contractor with 25+ years of experience. They offer custom-built detached ADUs from ~$335/sq ft, including solar, permits & plans. Free feasibility studies available. ADA-compliant units offered.
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Green Room Design-Build
136 North Acacia Avenue, Solana Beach, CA 92075
24.9 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 y... read more
Eco Home Builders Inc
5560 Ruffin Rd, Ste 4, San Diego, CA 92123
11.3 miles
Licensed San Diego design-build contractor (CSLB #1074166) building attached and detached ADUs across San Diego and Orange County, with design, permitting and construction handled in-house.
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Suncoast Construction Inc.
428 Sleeping Indian Road, Vista, CA 92057
40.2 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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GW Construction
4694 Alvarado Canyon Road, San Diego, CA 92120
5.6 miles
GW Construction is a San Diego general contractor specializing in ADU construction, home renovations, custom homes, and commercial projects. Services include garage conversions, backyard cottages, home additions, and multi-unit builds.
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Shermans Builders Inc
4818 Mount Elbrus Drive, San Diego, CA 92117
13.9 miles
Shermans Builders Inc. is a licensed San Diego ADU contractor with 150+ projects completed. Services include detached ADUs, garage conversions, and JADUs, covering permits, design, and construction with upfront cost estimates.
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3 Day Kitchen & Bath
10620 Treena Street, San Diego, CA 92131
14.7 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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Lieon Housing
San Diego, CA 92102
8.4 miles
Lieon Housing builds detached ADUs, JADUs, and garage conversions across San Diego County, including La Jolla, Pacific Beach, Del Mar, Encinitas, and Poway. Services cover feasibility review, design, permitting, and construction, navigating local ... read more
Woolsey Construction
1934 John Towers Avenue, El Cajon, CA 92020
4.5 miles
Woolsey Construction is a San Diego design-build firm with 15+ years of experience in custom homes, remodels, and ADU construction. Based in El Cajon, they offer expert project management, clear communication, and quality craftsmanship throughout ... read more
Kuhlman Scott Architects
607 North Vulcan Avenue, Encinitas, CA 92024
29.4 miles
Kuhlman Scott Architects specializes in custom ADU design across San Diego County. Led by Todd Kuhlman, with 30+ years of experience, the firm creates detached ADUs, garage conversions, and JADUs tailored for quality, livability, and long-term pro... read more
A2M Contractors
1877 Petaluma Drive, San Diego, CA 91913
6.5 miles
A2M Contractors builds custom ADUs—backyard cottages, in-law suites, garage conversions, and more. Increase property value, earn rental income, and gain flexible living space with full design and permitting support.
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Modern Granny Flat San Diego
5727 Adelaide Avenue, San Diego, CA 92115
5.9 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 Cal...
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Other cities in California
What you need to know
ADU Contractors in Spring Valley, CA: Building in an Unincorporated San Diego County Community
Spring Valley is a unique community in that it is an unincorporated area of San Diego County, meaning it does not have its own city government. This has significant implications for homeowners looking to build an Accessory Dwelling Unit (ADU). Instead of dealing with a local city planning department, all permits, zoning regulations, and building codes fall under the jurisdiction of the San Diego County Planning & Development Services (PDS). Experienced ADU contractors in Spring Valley understand this distinction and are well-versed in navigating county-level requirements rather than municipal ones.
Understanding ADU Regulations in Spring Valley Under San Diego County
Because Spring Valley falls under San Diego County's authority, ADU projects here must comply with California state ADU laws as well as the San Diego County Zoning Ordinance. Key regulations that local ADU contractors must work within include:
- ADUs up to 850 square feet (or 1,000 sq ft for units with more than one bedroom) cannot be denied based on floor area ratio
- Setback requirements of 4 feet from rear and side property lines for newly constructed ADUs
- Junior ADUs (JADUs) are permitted within the existing footprint of a single-family home
- Owner-occupancy requirements have been relaxed under recent California legislation through 2025
- Utility connections and impact fees may apply depending on the size and type of ADU
Why Hire a Local ADU Contractor in Spring Valley?
Spring Valley's housing stock consists largely of single-family homes built between the 1950s and 1980s, many of which sit on lots that are well-suited for ADU additions or garage conversions. A knowledgeable local ADU contractor will be familiar with the typical lot sizes, existing infrastructure, and soil conditions common to the area. They will also have established relationships with the San Diego County PDS office, helping to streamline the permitting process and avoid costly delays.
Types of ADUs Commonly Built in Spring Valley
Given the neighborhood's suburban character and lot configurations, the most popular ADU types in Spring Valley include:
- Detached ADUs – Standalone units built in backyards, ideal for rental income or multigenerational living
- Garage Conversions – Converting existing attached or detached garages into livable space
- Junior ADUs (JADUs) – Smaller units created within the existing home, often from a bedroom or bonus room
Finding the Right ADU Contractor in Spring Valley, CA
When searching for ADU contractors in Spring Valley, California, it is essential to choose a licensed general contractor with proven experience working under San Diego County's permitting system. Look for contractors who offer full-service solutions including design, permitting, and construction. A qualified contractor will help you maximize your property's potential while ensuring full compliance with all applicable county and state regulations.