ADU Contractors near Half Moon Bay, CA
WS Builders
162 Wolverine Way, Scotts Valley, CA 95066
36.7 miles
WS Builders offers expert ADU construction in Santa Cruz with 20 years of experience. Services include permit management, design collaboration, and full project oversight. Serving Santa Cruz, Scotts Valley & Soquel.
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HBC Construction
41060 High Street, Fremont, CA 94538
26.8 miles
HBC Construction, based in Fremont, CA, specializes in ADU building, garage conversions, new homes & additions across the Bay Area. Licensed, code-compliant, full-service from planning to completion.
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Top Rated Builders
5450 Thornwood Drive, San Jose, CA 95123
35.1 miles
At Top Rated Builders, we offer expert ADU construction services tailored to meet your specific needs. Whether you’re looking to add a studio ADU, a one-bedroom ADU, or a larger family unit, our experienced team will guide you through the entire construction process.
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Home Revive Builders
15559 Union Ave #234, Los Gatos, CA 95032
31.9 miles
Home Revive Builders is a licensed ADU contractor in the Bay Area, CA, specializing in garage conversions, detached ADUs, in-law suites, and more. Full-service projects include design, permits, plumbing, electrical, and finishing.
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Bao-Tran Builders Inc
2156 The Alameda, San Jose, CA 95126
29.2 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.
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J&A BUILDERS INC
99 South Almaden Avenue, San Jose, CA 95113
31.7 miles
J&A Builders Inc serves San Jose & the Bay Area with residential construction, remodeling, ADUs, second floor additions & garage conversions. Services include kitchen, bathroom, whole-home remodels & granny flats.
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Decor Builders
800 Charcot Avenue, San Jose, CA 95131
29.7 miles
Decor Builders is a San Jose-based ADU contractor with 15+ years of Bay Area experience. They offer full-service ADU design and construction, including granny flats and in-law suites, handling permits, engineering, and project management.
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Feldman Construction
3392 Georgetown Place, Santa Clara, CA 95051
25.7 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.
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Baystar - Garage Remodel
2074 Walsh Avenue, Santa Clara, CA 95050
27.1 miles
Bay Star Garage transforms garages into functional spaces in Santa Clara & Livermore, CA. Services include remodeling, flooring, EV charging, lighting, conversions & cabinets. Licensed, bonded & insured contractor specializing in ADUs and garage upgrades.
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Bobcat Builders
East Palo Alto, CA 94303
16.3 miles
Bobcat Builders is a Bay Area ADU contractor specializing in accessory dwelling units in Palo Alto. They offer attached & detached ADUs, garage conversions, granny flats & in-law suites, backed by a Two Year Satisfaction Guarantee.
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California Building and Remodeling
1900 Camden Avenue, Albany, CA 95124
31.7 miles
California Building and Remodeling offers ADU construction, kitchen & bathroom remodeling, roofing, and concrete services in Albany, CA and the Bay Area. Experienced ADU contractor serving Albany, Berkeley, Richmond & more.
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Edri Construction, Inc. Walnut Creek
1990 N California Blvd Ste 20, Walnut Creek, CA 94596
36.5 miles
Edri Construction, Inc. is a Walnut Creek-based ADU contractor serving the Bay Area. They specialize in garage conversions, detached ADUs, attached additions, in-law suites, and JADUs, handling design, permitting, and project management.
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Tiny House Basics
5433 Clayton Road, Clayton, CA 94517
42.5 miles
Tiny House Basics designs custom tiny house trailers with insulated floors, no thermal bridging, and build-ready delivery. Models range from 10–50ft, up to 12ft wide, in bumper pull or gooseneck styles. Lifetime consulting included.
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Element Home Remodeling
800 West El Camino Real, Mountain View, CA 94040
20.2 miles
Element Home Remodeling is a Mountain View ADU contractor offering full design-build services in Silicon Valley. They specialize in garage conversions, backyard cottages, in-law suites & rental units, serving Palo Alto, Sunnyvale & San Jose.
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Adapt Dwellings
5944 Claremont Avenue, Oakland, CA 94618
28 miles
ADUs add rental income & property value. Services include garage conversions, detached ADUs, JADUs & granny flats. ADU Feasibility Studies cover code, utilities & ROI. Architectural services via Adapt Dwellings ensure smooth approval to construction.
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Other cities in California
What you need to know
Building ADUs in Half Moon Bay: Coastal Zone Challenges and Opportunities
Half Moon Bay, nestled along the stunning San Mateo County coastline, presents a unique set of challenges for ADU contractors. Much of the city falls within the California Coastal Zone, which means that accessory dwelling unit projects may require not only standard local permits but also a Coastal Development Permit (CDP) issued in compliance with the California Coastal Act. Experienced ADU contractors in Half Moon Bay understand how to navigate these additional regulatory layers, ensuring your project moves forward without costly delays.
Local Zoning and ADU Regulations in Half Moon Bay
Half Moon Bay follows California state ADU law while also enforcing its own Municipal Code and Local Coastal Program (LCP). Homeowners in residential zones such as R-1 and R-2 are generally permitted to build ADUs, but contractors must carefully review setback requirements, lot coverage limits, and height restrictions that can vary by parcel. The city typically allows ADUs up to 1,200 square feet for detached units, and Junior ADUs (JADUs) up to 500 square feet within existing primary structures. Key considerations include:
- Compliance with the Half Moon Bay Local Coastal Program
- Potential requirement for a Coastal Development Permit
- Setback minimums of 4 feet from rear and side property lines for new detached ADUs
- Owner-occupancy rules that may apply depending on the project type
- Environmental review for properties near sensitive coastal habitats
Why Hire a Specialized ADU Contractor in Half Moon Bay?
Working with an ADU contractor experienced in Half Moon Bay is essential due to the city's complex regulatory environment. A knowledgeable contractor will handle the permitting process with the City of Half Moon Bay Community Development Department, coordinate with the California Coastal Commission when necessary, and ensure your ADU meets all building codes including seismic safety standards relevant to this coastal region. Attempting to manage these requirements without professional guidance can result in permit denials, project delays, and significant financial setbacks.
Types of ADUs Commonly Built in Half Moon Bay
Given the character of Half Moon Bay's residential neighborhoods — many featuring larger lots with existing single-family homes — the most popular ADU types include:
- Detached ADUs: Standalone backyard cottages ideal for rental income or multigenerational living
- Garage Conversions: Transforming existing garages into livable spaces with minimal new construction
- Attached ADUs: Additions connected to the primary home, maximizing existing infrastructure
- Junior ADUs (JADUs): Converted interior spaces within the primary residence
Maximize Your Investment with the Right ADU Contractor
Half Moon Bay's desirable location along the San Mateo County coast means that a well-built ADU can command strong rental rates and significantly increase property value. By partnering with a licensed, local ADU contractor who understands the city's coastal regulations, zoning codes, and construction environment, homeowners can confidently move from concept to completed unit — and start enjoying the financial and lifestyle benefits of their new accessory dwelling unit.