ADU Contractors near San Leandro, CA
Gordon Reese
100 Pringle Avenue, Walnut Creek, CA 94596
14.8 miles
Gordon Reese Design Build is a licensed ADU contractor in Walnut Creek, CA, with 41+ years of experience. They offer custom ADU design and construction, 3D renderings, transparent pricing, serving the Bay Area including Danville, Lafayette & Concord.
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Home by Tom
1990 North California Boulevard, Walnut Creek, CA 94596
14.7 miles
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.
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New Avenue, Inc
2120 University Avenue, Berkeley, CA 94704
12.8 miles
New Avenue, Inc is a full-service design-build company serving the San Francisco Bay Area and Portland, OR since 2011. They specialize in ADUs, custom homes, renovations, additions, and Enclaves, managing design, permitting, and construction under one roof.
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Urban Shore Builders
226 Delfino Avenue, Point Richmond, CA 94801
19.6 miles
Urban Shore Builders offers full-service ADU design & construction, including garage conversions, detached units & additions. As a turnkey ADU contractor, they handle permits, design & build. Services include plumbing, electrical, HVAC & retaining walls.
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ADORE Homes
180 East Sunnyoaks Avenue, Campbell, CA 95008
32.2 miles
ADORE Homes is a California ADU contractor specializing in detached ADUs, garage conversions, JADUs & in-law suites. They manage design, permitting & construction, helping homeowners add value & living space.
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DeBrus Construction LLC
820 Arguello Boulevard, San Francisco, CA 94118
16.9 miles
DeBrus Construction LLC is a San Francisco general contractor specializing in seismic retrofits, foundation repair, ADU construction, and home remodeling. Led by Malcolm DeBrus, the company handles mandatory soft story retrofits, garage conversions, and full remodels with transparent pricing.
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Adapt Dwellings
5944 Claremont Avenue, Oakland, CA 94618
10.9 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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Metricon Homes
2010 Crow Canyon Road, Suite 100, San Ramon, CA 94583
11.3 miles
Metricon Homes offers ADU construction and garage conversion services. Choose from 5 sizes: Marigold, Camellia, Magnolia, Dahlia, and Sunflower. Their Design to Doorstep process covers custom design to completion. Licensed contractor: Tobin Brinker, License #1128717.
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E&E General Construction Inc
601 21st, Richmond, CA
18.8 miles
E&E General Construction Inc (License #1067263) specializes in ADU construction and garage conversions in Richmond, CA. Services include detached ADUs, attached units, and garage conversions across the Bay Area. Free estimates available.
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Anura Design
367 Civic Drive, Pleasant Hill, CA 94523
19.2 miles
Anura Design specializes in ADU design, offering styles from modern farmhouse and contemporary steel to Mediterranean stucco. Their interiors feature open-concept layouts, natural wood tones, and refined finishes tailored to compact, functional living spaces.
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Bay Area Home Remodelers
225 Schwerin Street, San Francisco, CA 94134
13.7 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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DevArt8 Builders
1828 South Milpitas Boulevard, Milpitas, CA 95035
25.3 miles
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.
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Vitalize Build
3120 Scott Blvd, Suite 130, Santa Clara, CA 95054
25.2 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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Apex Homes ADU Design-Builder
10050 North Foothill Boulevard, Cupertino, CA 95014
27.1 miles
Apex Homes is a full-service ADU builder in the South Bay Area, serving Campbell, Palo Alto & South San Jose. They offer detached ADUs, granny flats & in-law suites, with pre-designed floor plans from $185,000.
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Wise Builders
2355 Paragon Drive, San Jose, CA 95131
25.7 miles
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.
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Other cities in California
What you need to know
ADU Contractors in San Leandro: Building in a Growing East Bay City
San Leandro, located in Alameda County along the eastern shore of San Francisco Bay, has seen significant residential growth and densification in recent years. As housing demand across the Bay Area continues to surge, ADU contractors in San Leandro are playing a critical role in helping homeowners maximize their property value while contributing to the city's housing supply. San Leandro's mix of post-war single-family homes, many with spacious backyards, makes it an ideal city for accessory dwelling unit construction.
San Leandro ADU Regulations and Permitting
Before breaking ground, homeowners must understand that ADU projects in San Leandro are governed by both California state law and local municipal codes. The City of San Leandro's Community Development Department oversees ADU permitting. Key regulations include:
- Detached ADUs can be up to 1,200 square feet in size
- Attached ADUs are generally limited to 50% of the primary dwelling's square footage
- Junior ADUs (JADUs) are capped at 500 square feet and must be within the existing structure
- Setback requirements typically require a minimum of 4 feet from rear and side property lines for detached ADUs
- Owner-occupancy requirements have been suspended under recent California state law, allowing non-owner-occupied properties to build ADUs
Why Hire a Local ADU Contractor in San Leandro?
Working with an experienced ADU contractor familiar with San Leandro's building department can save homeowners significant time and money. Local contractors understand the nuances of the city's plan check process, know which inspectors to work with, and are familiar with common soil and foundation conditions found in the East Bay flatlands. San Leandro's older housing stock also means contractors frequently encounter aging utilities, which require careful evaluation before construction begins.
Types of ADUs Commonly Built in San Leandro
Skilled ADU builders in San Leandro typically offer a range of construction types suited to the city's residential neighborhoods:
- Detached backyard cottages – the most popular option given the lot sizes in neighborhoods like Estudillo Estates and Washington Manor
- Garage conversions – a cost-effective solution that repurposes existing structures
- Basement conversions – less common but feasible in certain older homes
- Attached ADUs – built as additions to the main home, sharing at least one wall
Costs and Timeline for ADU Construction in San Leandro
The cost of building an ADU in San Leandro typically ranges from $150,000 to $350,000, depending on size, type, and finishes. Permit timelines through the City of San Leandro can range from a few weeks for pre-approved plans to several months for custom designs. Hiring a qualified licensed ADU contractor in San Leandro ensures compliance with California Title 24 energy codes, ADA accessibility considerations, and all local zoning requirements, giving homeowners peace of mind throughout the entire construction process.