ADU Contractors near Union City, CA
Cupertino ADU Solutions
10320 North De Anza Boulevard, Cupertino, CA 95014
19.8 miles
Cupertino ADU is Silicon Valley's premier ADU builder, specializing in accessory dwelling units for rental income, intergenerational living, home offices, and eco-friendly housing solutions tailored to Cupertino homeowners.
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ExpandADU | Prefab ADUs
41111 Mission Boulevard, Fremont, CA 94539
8.2 miles
ExpandADU is a California-based prefab ADU builder offering full-service accessory dwelling unit construction, including consultation, design, planning, and build. Serving the Bay Area and beyond, they specialize in detached ADUs, granny flats, and JADUs.
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LRL Builders
1661 Botelho Drive, Walnut Creek, CA 94596
20.3 miles
Ingenuity Construction Group
991 Berryessa Road, San Jose, CA 95133
18 miles
At Ingenuity Construction Group, we specialize in crafting exceptional Accessory Dwelling Units (ADUs) that blend seamlessly with your existing property. With over 20 years of experience, our dedicated team ensures each ADU project is completed with meticulous attention to detail and superior craftsmanship.
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Adria Design + Build
648 Paco Drive, Los Altos, CA 94024
16.3 miles
We guide you through design options and material choices, taking precise measurements to create a custom plan that perfectly fits your property. This careful planning ensures that your new ADU will seamlessly blend with your existing space and meet all your functional needs.
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Alon Design & Remodeling
722 Charcot Avenue, San Jose, CA 95131
16.2 miles
Alon Design & Remodeling is a leading ADU contractor offering detached, attached, garage conversion, basement, and JADU options. ADUs boost property value, generate rental income, and provide independent living spaces with full amenities.
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Kyvos Construction Inc
430 Railroad Ave suite 211, Pittsburg, CA CA 94565
30.6 miles
Kyvos Construction Inc., a San Francisco Bay Area general contractor since 1991, offers residential remodeling, custom homes, kitchen & bathroom renovations, ADU construction, garage conversions, and more with expert craftsmanship.
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Quality Choice Construction & Painting
900 Doolittle Drive, Oakland, CA 94577
12.3 miles
Quality Choice Construction & Painting offers ADU construction services including studio, 1-bedroom, and 2-bedroom units. Options include garage conversions, backyard cottages, and detached ADUs for rental income or multi-generational living.
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Edri Construction, Inc. Berkeley
2120 University Ave, Berkeley, CA 94704
23 miles
Edri Construction, Inc. is a Berkeley-based general contractor specializing in ADU construction across the Bay Area. Services include garage conversions, detached ADUs, attached additions, granny flats, and custom interiors, with full project management from permits to finishing.
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OCA Builders: ADU Construction
331 Soquel Avenue, Santa Cruz, CA 95062
43.7 miles
OCA Builders offers ADU design & construction in Santa Cruz County, including detached, attached, garage conversion, internal, and Junior ADUs. They use pre-approved floor plans to streamline permitting, saving homeowners time and effort.
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ADU Home Addition
68 Centre Street, Mountain View, CA 94041
14.8 miles
ADU Home Addition is a leading Bay Area ADU contractor with 12+ years of experience. They specialize in custom ADU construction, in-law suites, garage conversions, home additions, and rental-optimized ADUs, handling design, permits, and full construction.
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HDR Remodeling
5677 Horton Street, Emeryville, CA 94608
22.2 miles
HDR Remodeling is a Bay Area Design Build firm since 1987, specializing in kitchen remodels, bathroom renovations, and home improvements across Oakland, Berkeley, Alameda, and the East Bay, backed by an experienced team of architects and designers.
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SFBay ADU
111 North Market Street, San Jose, CA 95113
19.6 miles
SFBay ADU is a Bay Area ADU contractor offering full-service design, permitting, and construction. Specializing in 600–1,200 sq ft units, they offer studio, 2-bed, garden cottage, and in-law suite options, with projects completed in as little as 6 months.
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Velazquez Construction
156 Casillas Avenue, Freedom, CA 95019
48.1 miles
Velazquez Construction is a licensed, bonded general contractor (Lic. #1081720) with 18+ years serving Watsonville, Santa Cruz, Monterey & San Jose. Specializing in ADUs, garage conversions, remodels & home additions.
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Home Quality Remodeling
1070 Concord Avenue, Concord, CA 94520
26 miles
Home Quality Remodeling Inc. is a licensed Bay Area general contractor (CSLB #838832) with 20+ years of experience. Services include kitchen & bathroom remodeling, room additions, ADUs, and outdoor living across Concord, San Jose, and Paramus, NJ.
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Other cities in California
What you need to know
ADU Contractors in Union City, CA: Building in the Heart of the Tri-City Area
Union City, California, situated in Alameda County between Fremont, Newark, and Hayward, is a diverse and growing community that has seen increasing demand for Accessory Dwelling Units (ADUs). With its proximity to major employment hubs in Silicon Valley and the Bay Area, many Union City homeowners are turning to experienced ADU contractors to add rental income opportunities or house extended family members. The city's mix of single-family residential neighborhoods and relatively spacious lots makes it a prime location for ADU development.
Understanding Union City ADU Regulations and Permitting
Before breaking ground, homeowners must understand that ADU projects in Union City fall under both California state law and local Alameda County and City of Union City zoning ordinances. The Union City Community Development Department oversees the permitting process. Key regulations that your ADU contractor must navigate include:
- Setback requirements: Detached ADUs typically require a minimum 4-foot rear and side yard setback.
- Maximum ADU size: 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.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though this can vary based on proximity to the main structure.
- Owner-occupancy rules: California state law has suspended owner-occupancy requirements for ADUs until 2025, offering more flexibility for Union City property owners.
- Parking requirements: ADUs located within half a mile of public transit may be exempt from additional parking requirements — a significant advantage given Union City's access to BART.
Why Hire a Local ADU Contractor in Union City?
Hiring a licensed ADU contractor familiar with Union City is essential for a smooth construction process. Local contractors understand the specific requirements of the Union City Building and Safety Division, including soil conditions common to the area and local utility connection protocols. They are also well-versed in coordinating with PG&E for utility hookups and navigating Alameda County's environmental review processes when applicable.
Types of ADUs Popular in Union City
Union City homeowners typically work with ADU contractors to build one of the following unit types:
- Detached ADUs: Standalone structures in the backyard, ideal for larger lots common in Union City's residential neighborhoods.
- Attached ADUs: Extensions of the existing home, sharing at least one wall with the primary structure.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing home's footprint, often from a converted bedroom or garage space.
- Garage Conversions: A cost-effective option for Union City homeowners looking to maximize existing structures.
Get Started with a Trusted Union City ADU Contractor
Working with a qualified ADU contractor in Union City, CA ensures your project meets all local building codes, stays on budget, and is completed efficiently. From initial design and permit submission to final inspection, the right contractor will guide you through every step. Given the high demand for rental housing in the Bay Area, investing in an ADU in Union City is a smart long-term decision for any homeowner.