Barzel Builders

4039 Transport Street, Palo Alto, CA 94303 12.8 miles

Atra Construction

Atra Construction is a Bay Area ADU contractor offering full-service design and build. They handle permits, planning, and construction management. Floor plans range from 240 sq ft studios to 1,200 sq ft three-bedroom units.

Wise Builders

2355 Paragon Drive, San Jose, CA 95131 8.1 miles

Licensed 20 years in business

Wise Builders is a Bay Area ADU contractor with 20+ years of experience in accessory dwelling units, garage conversions, and attached or detached ADU construction across San Jose, Sunnyvale, and Silicon Valley. Free estimates available.

Ingenuity Construction Group

991 Berryessa Road, San Jose, CA 95133 6.9 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.

Clever Design & Remodeling

1630 Oakland Road, San Jose, CA 95131 7.7 miles

Licensed

Clever Design & Remodeling builds ADUs across the San Francisco Bay Area, including garage conversions, attached, detached, and junior ADUs. Services cover permits, construction, interior design, and landscaping. Average ADU cost is ~$145,000.

Romy Construction Inc

612 Miller Avenue, South San Francisco, CA 94080 36.2 miles

Rosegold Builders, Inc.

358 South Abbott Avenue, Milpitas, CA 95035 10.2 miles

Eco-Friendly Luxury Builds

Rosegold Builders builds custom ADUs across the Bay Area and Los Angeles, handling permits, zoning, and construction. Services include garage conversions, backyard cottages, and rental units designed to boost property value.

DevArt8 Builders

1828 South Milpitas Boulevard, Milpitas, CA 95035 9.6 miles

Luxury Builds

DevArt8 Builders specializes in ADU construction in Gilroy, offering floor plans from 350–650 sq. ft. They handle permits, ensure zoning compliance, and build detached ADUs, attached units, and garage conversions tailored to each property.

Reno Revive Remodeling

2655 Stanwell Drive, Concord, CA 94520 48.9 miles

Whether you’re planning a rental unit, a guest house, or a private suite for family, RenoRevive will help you design and build a fully functional ADU that fits your needs, your lot, and your long-term goals.

Element Homes

188 Acalanes Drive, Sunnyvale, CA 94086 8 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.

ResCom ADU, LLC

675 Ygnacio Valley Rd B213, Walnut Creek, CA CA 94596 43.6 miles

Licensed Eco-Friendly

ResCom ADU is a full-service ADU builder in Walnut Creek, CA, offering design, permits, engineering, construction & hookups. With 100+ years of combined experience, they deliver custom, cost-effective accessory dwelling units using SIPs & Net-Zero technology.

Bao-Tran Builders Inc

2156 The Alameda, San Jose, CA 95126 4.6 miles

Bao-Tran Builders Inc specializes in ADU construction, including detached ADUs, granny flats, JADUs, garage conversions & multi-unit properties. Expert ADU contractor delivering functional, high-quality housing solutions for property owners.

Spruce ADU Builders Union City

3909 Smith Street, Union City, CA 94587 22.9 miles

Licensed Free Consultation

Spruce ADU Builders is a licensed ADU contractor in Union City offering expert accessory dwelling unit construction. Services include granny flats, in-law suites, and custom ADUs with free consultations, transparent pricing, and a 100% satisfaction guarantee.

PCI Construction Inc

2682 Middlefield Road, Redwood City, CA 94063 20 miles

Licensed

PCI Construction Inc is a trusted ADU contractor offering custom accessory dwelling units, garage conversions, granny flats, and in-law suites. Licensed, bonded, and insured, they handle permitting, design, and construction efficiently.

Parsa Construction

1105 Fair Weather Circle, Concord, CA 94518 46.2 miles

Parsa Construction offers residential & commercial remodeling, ADU construction, and retrofit services. Specializing in kitchen, bathroom, room additions, and accessory dwelling units like granny flats and detached ADUs, they manage permits, design, and build.

Other cities in California

What you need to know

Building ADUs in Campbell, CA: A City Known for Its Small-Town Charm and Growing Housing Demand

Campbell, California, nestled in the heart of Silicon Valley in Santa Clara County, is a vibrant city known for its historic downtown, tree-lined streets, and strong sense of community. As housing demand continues to surge across the Bay Area, many Campbell homeowners are turning to ADU contractors in Campbell, CA to add accessory dwelling units to their properties. Whether you're looking to house extended family, generate rental income, or increase your property value, building an ADU in Campbell is a smart investment in one of the most competitive real estate markets in the country.

Understanding Campbell's ADU Regulations and Permitting Process

Before breaking ground, it's essential to understand the local rules that govern ADU construction in Campbell. The city follows California state ADU law while also enforcing its own municipal codes. Key regulations include:

Why Hiring a Local ADU Contractor in Campbell Matters

Working with an experienced ADU contractor familiar with Campbell's building department can save you significant time and money. Local contractors understand the nuances of the city's permitting process, including plan check requirements through the Campbell Community Development Department. They are also familiar with local utility connection protocols and can help navigate any challenges related to Campbell's older residential neighborhoods, where lot sizes and existing infrastructure may present unique construction considerations.

Types of ADUs Commonly Built in Campbell

Start Your Campbell ADU Project Today

With rising rents and limited housing inventory across Santa Clara County, adding an ADU to your Campbell property is both a practical and financially rewarding decision. Partnering with a qualified ADU contractor in Campbell, California ensures your project meets all local and state requirements while delivering a high-quality living space. Reach out to a licensed local contractor today to get started with a site evaluation and design consultation.

ADU Contractors near Campbell, CA