Greenwood Custom Builders, Inc.

765 Old County Road, San Carlos, CA 94070 13.2 miles

Feldman Construction

3392 Georgetown Place, Santa Clara, CA 95051 19.2 miles

Feldman Construction specializes in custom ADU design and construction across the Bay Area, including San Mateo and Santa Clara County. They build detached ADUs, granny flats, and in-law suites to boost property value and expand living space.

Santa Cruz Construction Experts

303 Potrero Street, Santa Cruz, CA 95060 45 miles

Santa Cruz Construction Experts builds ADUs in Scotts Valley, CA, including detached units, granny flats & in-law suites. They also construct pool houses, garages & outdoor spaces, ensuring local code compliance.

Shefer Builder Inc.

585 S Winchester blvd #759, San Jose, CA 95128 22.8 miles

Shefer Builder Inc. offers full-service ADU construction, managing design, permits, and building. Specializing in detached ADUs, granny flats, and in-law suites, they deliver custom accessory dwelling units that boost property value and rental income.

DreamHome Remodeling & Builders

36 Harold Avenue, Santa Clara, CA 95050 21.9 miles

Home by Tom

1990 North California Boulevard, Walnut Creek, CA 94596 19 miles

Licensed 21 years in business

Home by Tom is a Bay Area ADU contractor with 21+ years of experience serving Walnut Creek. They build detached ADUs, attached ADUs, and garage conversions, managing design, permits, and construction for rental income or multi-generational living.

Method Remodeling General Contractor

533 Airport Boulevard, Burlingame, CA 94010 15 miles

Licensed

Custom ADU construction and remodeling services focused on creating functional, comfortable living spaces with quality craftsmanship and reliable workmanship.

Edri Construction, Inc. San Francisco

701 Cortland Avenue, San Francisco, CA 94110 19.9 miles

Eco-Friendly Luxury Builds

Edri Construction, Inc. is a San Francisco-based ADU contractor offering full-service accessory dwelling unit construction across the Bay Area, including garage conversions, detached ADUs, granny flats, and energy-efficient home additions with in-house project management.

HDR Remodeling

5677 Horton Street, Emeryville, CA 94608 18.6 miles

Licensed 38 years in business Eco-Friendly

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.

Build My Casita

652 Gilman Street, Palo Alto, CA 94301 13.7 miles

Barcci Builders

16185 Los Gatos Boulevard, Los Gatos, CA 95032 28.3 miles

Luxury Builds

Barcci Builders specializes in ADU construction across the Bay Area, offering design, permitting, and build services. With 40+ completed units, they handle JADUs, garage conversions, attached, and detached ADUs, with costs ranging from $60K to $400K+.

Apex ADU Builders

10050 North Foothill Boulevard, Los Angeles, CA 95014 21.4 miles

Apex ADU Builders is a Los Angeles-based contractor specializing in accessory dwelling unit construction. Services include new builds, garage conversions, permitting, and design. Costs range from $80K–$400K, with potential ROI 35% higher than homes without ADUs.

Apex Homes

10275 North De Anza Boulevard, Cupertino, CA 95014 21.3 miles

Licensed Eco-Friendly

Eagle ADU

2678 North Main Street, Walnut Creek, CA 94597 20.4 miles

Licensed Prefab Specialist Luxury Builds

Eagle ADU is a licensed ADU builder in Northern California offering three signature models: Eagle Studio ($180K–$220K), Eagle One ($230K–$280K), and Eagle Two ($310K–$360K), with rental income potential up to $4,000/month.

ExpandADU | Prefab ADUs

41111 Mission Boulevard, Fremont, CA 94539 11.8 miles

Prefab Specialist

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.

Other cities in California

What you need to know

ADU Contractors in Hayward, CA: Building in the Heart of the East Bay

Hayward, California, situated in Alameda County along the eastern shores of San Francisco Bay, is one of the most strategically located cities in the East Bay. With its diverse population, proximity to major employment hubs like Silicon Valley and San Francisco, and a strong demand for affordable housing, ADU contractors in Hayward are busier than ever. The city's commitment to addressing the regional housing shortage makes Accessory Dwelling Units (ADUs) an increasingly popular solution for homeowners looking to add value to their properties or generate rental income.

Hayward ADU Regulations and Permitting Requirements

Working with experienced ADU contractors in Hayward, CA is essential because local regulations must be carefully followed. Hayward adheres to California state ADU laws while also enforcing its own municipal codes. Key regulations homeowners and contractors must be aware of include:

Types of ADUs Built by Hayward Contractors

Professional ADU builders in Hayward are experienced in constructing a variety of ADU types to suit different lot sizes and homeowner needs. The most common types include:

Why Hire a Local ADU Contractor in Hayward?

Hiring a local ADU contractor in Hayward offers significant advantages. Local professionals are familiar with the City of Hayward's Building Division permit process, plan check requirements, and inspection protocols. They understand the specific soil and seismic considerations relevant to the East Bay region, which can impact foundation design and construction costs. Additionally, local contractors often have established relationships with Hayward's planning and building departments, helping to streamline approvals and avoid costly delays.

Whether you're looking to create a rental unit, house a family member, or simply increase your property's value, partnering with a knowledgeable Hayward ADU contractor is the smartest first step toward a successful project.

ADU Contractors near Hayward, CA