ADU Contractors near San Jose, CA
Bay Villa Builders
36007 Bayonne Drive, Newark, CA 94560
19.8 miles
Bay Villa Builders brings over 50 years of combined experience in crafting expertly designed ADUs that enhance both your home's functionality and its value. An Accessory Dwelling Unit, or ADU, serves as an additional living space on your property.
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Geico Builders
1901 Harrison Street, Oakland, CA 94612
41.8 miles
Geico Builders offers ADU services including detached ADUs, attached ADUs, Junior ADUs, garage conversions, and home additions. Ideal for rental income, family housing, or maximizing space on your existing property.
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Element Homes
188 Acalanes Drive, Sunnyvale, CA 94086
11.3 miles
Element Homes is a California ADU contractor offering full-service design, permitting, and construction. They build detached ADUs, garage conversions, and in-law suites across the Bay Area, with in-house teams, warranties, and free estimates.
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Bay Area Home Remodelers
225 Schwerin Street, San Francisco, CA 94134
41.9 miles
Bay Area Home Remodelers builds ADUs in Daly City, San Francisco & San Jose. Services include garage conversions, granny flats, JADUs & detached units. Full project support from permits to completion.
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Talmadge Construction Inc
8070 Soquel Drive, Aptos, CA 95003
22.9 miles
Talmadge Construction Inc is a Santa Cruz County home remodeling company specializing in ADUs, garage conversions, granny flats, and in-law suites. Known for craftsmanship and clear communication, they offer design consultations for residential projects.
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Vitalize Build
3120 Scott Blvd, Suite 130, Santa Clara, CA 95054
8.2 miles
Vitalize Build is a Bay Area ADU contractor offering design and construction services for detached ADUs, garage conversions, and in-law suites. They provide preapproved, predesigned, and custom layouts ranging from 238 to 1,200 sq ft.
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Mission Home Remodeling
475 Gough Street, San Francisco, CA 94102
45.6 miles
Larson Shores Architects
1295 Alabama Street, San Francisco, CA 94110
46.2 miles
Larson Shores Architects is a San Francisco-based firm offering residential, ADU, and commercial design services. Founded in 2007 by Josh Larson, they specialize in new builds, garage conversions, in-law suites, and full permit navigation across the Bay Area.
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CDU Inc.
#595 San Ramon Valley Blvd, Danville, CA 94526
37.3 miles
CDU Inc. offers expert ADU construction & remodeling in the Greater Bay Area. Services include new builds, garage conversions, electrical, plumbing & custom design to boost property value & functionality.
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Jeff Martinez Construction
11 Susie Ct, Oakley, CA 94561
48.7 miles
Jeff Martinez Construction Inc. builds ADUs in Oakley, CA with 27+ years of experience. Services include detached ADUs, garage conversions, permits, finishing, and landscape integration across Contra Costa County.
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Perpetual Homes ADU
4115 Blackhawk Plaza Circle, Danville, CA 94506
34.8 miles
Perpetual Homes is a Northern California ADU builder with 40+ years of experience. They offer customizable prefab ADUs, a 10-step process, no site work markup, Energy Star insulation, a 7-year warranty, and an A+ BBB rating.
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Ability Drafting Services
19020 Karen Drive, Salinas, CA 93907
44.6 miles
ADUs are secondary residential units on the same lot as a primary home. Ability Drafting Services assists homeowners with ADU design and permitting, covering detached, attached, and garage conversion types, preparing full drawing sets for approval.
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DMC Construction LLC
1177 Vanderbilt Circle, Manteca, CA 95337
48.3 miles
Welcome to limitless possibilities with DMC Construction’s Accessory Dwelling Unit (ADU) construction services. As the demand for flexible living spaces grows, they stand ready to transform your property with innovative and expertly crafted accessory dwelling units.
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Step-up Construction
398 Bay Street, San Jose, CA 95123
4.2 miles
Step-up Construction is a San Jose ADU contractor specializing in garage conversions, attached additions, and detached backyard ADUs. Costs range from $80K to $475K. They guide homeowners through permits, zoning, and San Jose's ADU regulations.
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Jaws Construction Services
14000 Kelso Road, Byron, CA 94514
41.7 miles
Jaws Construction Services builds ADUs, garage conversions, and JADUs. They handle permits, HOA coordination, and offer site-built or prefab options. East Bay ADUs rent for $1,500–$3,500+/month, potentially boosting property value.
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Other cities in California
What you need to know
Building ADUs in San Jose: Navigating Silicon Valley's Housing Crisis
San Jose is the largest city in Northern California and sits at the heart of Silicon Valley, where skyrocketing housing costs have made Accessory Dwelling Units (ADUs) one of the most practical solutions for homeowners looking to add rental income or housing for family members. With the median home price consistently among the highest in the nation, hiring experienced ADU contractors in San Jose has become increasingly popular as residents look to maximize their property's value and contribute to the city's housing supply goals.
San Jose ADU Regulations and Zoning Requirements
San Jose follows California state ADU laws while also maintaining its own local guidelines. Working with a knowledgeable ADU contractor in San Jose is essential to navigating these rules successfully. Key regulations homeowners should be aware of include:
- Unit size limits: Detached ADUs can be up to 1,200 square feet, while attached ADUs are generally limited to 50% of the primary dwelling's square footage.
- Setback requirements: A minimum 4-foot setback from rear and side property lines is typically required for new detached ADUs.
- Height restrictions: Detached ADUs are generally limited to 16 feet in height, though this can vary by zone.
- Owner-occupancy rules: California law has suspended owner-occupancy requirements for ADUs until 2025, giving San Jose homeowners more flexibility.
- Parking requirements: In many cases, especially near transit corridors, ADU parking requirements are waived entirely.
Types of ADUs San Jose Contractors Commonly Build
Experienced ADU builders in San Jose are well-versed in constructing a variety of unit types to suit different lot sizes and homeowner needs. The most common types include:
- Detached ADUs: Standalone structures in the backyard, offering maximum privacy for both tenant and homeowner.
- Attached ADUs: Units built as an addition to the existing home, sharing at least one wall.
- Garage Conversions: A highly popular option in San Jose, converting an existing garage into a livable space.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing footprint of the primary residence.
Why Hiring a Local San Jose ADU Contractor Matters
Choosing a local ADU contractor in San Jose means working with professionals who understand the city's specific permitting process through the San Jose Department of Planning, Building and Code Enforcement (PBCE). Local contractors are familiar with the city's pre-approved ADU plan program, which can significantly speed up the permitting timeline. They also understand the unique soil conditions, seismic requirements, and utility connection protocols specific to the South Bay Area.
Whether you're looking to generate rental income, house extended family, or simply increase your property value, partnering with a qualified San Jose ADU contractor is the smartest first step toward a successful build.