ADU Contractors near Bainbridge Island, WA
HiLine Homes
11306 62nd Avenue East, Puyallup, WA 98373
32.8 miles
HiLine Homes is an experienced ADU builder in Idaho with nearly 30 years in custom home construction. They offer attached and detached ADU designs for rental income, multigenerational living, or home offices, with financing options available.
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Renovate Builders
4555 39th Avenue Southwest, Seattle, WA 98116
9.4 miles
Mallard Brothers Construction
120 State Avenue Northeast, Olympia, WA 98501
44.6 miles
Mallard Brothers Construction builds ADUs & Tiny Homes in Olympia, WA. They offer attached, detached, garage conversions & ADA-accessible units, managing design, permits & construction for property owners seeking rental income or extra living space.
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Better Builders
5606 California Avenue Southwest, Seattle, WA 98136
9.7 miles
Better Builders is a Seattle-based general contractor specializing in residential remodeling, garage conversions, ADUs, kitchen and bathroom remodels, basement finishing, deck repairs, and exterior work, with dedicated project management.
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Cascadia ADU
901 1st Street, Snohomish, WA 98290
28 miles
Cascadia ADU builds attached, detached, garage & basement ADUs across King, Snohomish, Skagit & Chelan Counties, WA. Full-service design, permitting & construction completed in 8–10 weeks with 10+ years experience.
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Seattle Remodeling LLC
17202 Aurora Avenue North, Shoreline, WA 98133
12 miles
Seattle Remodeling LLC specializes in ADU construction in Seattle, offering mother-in-law suites, backyard cottages, garage conversions, and granny flats. They help homeowners add value, rental income, and flexible living space.
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BelRed Construction - Bathroom Remodeling
13629 Northeast Bel Red Road, Bellevue, WA 98005
17.3 miles
Our team specializes in ADU construction and home remodeling, creating functional, well-designed spaces with quality craftsmanship and attention to detail.
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Abel Construction LLC
Black Diamond, WA 98010
34.2 miles
Abel Construction LLC builds barndominium ADU shells in Black Diamond & Rochester. Ideal for rentals, guest suites & extra living space. Durable, cost-effective & customizable structures for property owners.
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Harmony Architecture Studio
1324 Lombard Avenue, Everett, WA 98201
28.2 miles
Verum Construction Inc
17461 147th Street Southeast, Monroe, WA 98272
29.7 miles
An ADU (accessory dwelling unit) is a secondary dwelling on a single-family lot. Types include basement apartments, garage conversions & detached cottages. Costs vary by size, design, permits & materials. Professional ADU contractors ensure smooth project execution.
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New Day Construction
15021 116th Place Northeast, Kirkland, WA 98034
17.8 miles
New Day Construction is a licensed ADU builder in Bellevue, WA, with 21+ years of experience and 250+ projects. They build detached, attached, garage, basement, and custom ADUs, managing permits and design from start to finish.
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Heartwood Builders
1902 North 34th Street, Seattle, WA 98103
9.7 miles
Heartwood Builders is a Seattle ADU contractor specializing in backyard cottages, basement ADUs, and mother-in-law suites. They handle permitting, use sustainable materials, and help homeowners add rental income or family housing.
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Microhouse
114 North 42nd Street, Seattle, WA 98103
8.7 miles
Microhouse is a Seattle-based ADU builder specializing in custom detached ADUs (DADUs). They guide homeowners through zoning, design, and construction. Seattle permitted 551 DADUs in 2022, with a 40% increase in 2023. Microhouse offers site assessments and tailored DADU solutions.
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Northwest ADU
1201 Pacific Avenue, Tacoma, WA 98402
27.5 miles
Northwest ADU is a full-service ADU contractor in Western Washington specializing in detached ADUs, garage conversions, and basement conversions. Serving Pierce, King, and Snohomish Counties, projects range from $180K–$350K+, taking 6–10 months.
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Evola Builds LLC
Poulsbo, WA 98370
8.1 miles
Evola Builds LLC, led by Michael and Amber Evola, offers residential renovation and construction services including bathroom remodels, ADU work, garage conversions, and structural modifications, collaborating closely with architects and homeowners.
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Other cities in Washington
What you need to know
Building ADUs on Bainbridge Island: A Ferry-Connected Community with Unique Opportunities
Bainbridge Island, Washington, is one of the most desirable communities in the Puget Sound region, offering a rare blend of small-town charm and easy access to Seattle via the Washington State Ferry. This island setting creates a unique housing market where Accessory Dwelling Units (ADUs) are increasingly in demand. Whether you're looking to house extended family, generate rental income, or add long-term property value, working with experienced ADU contractors in Bainbridge Island is essential to navigating the island's specific building environment.
Bainbridge Island ADU Regulations and Zoning Requirements
The City of Bainbridge Island has its own set of zoning codes and land use regulations that directly impact ADU construction. Under the Bainbridge Island Municipal Code (BIMC), ADUs are permitted in most residential zones, but contractors must carefully adhere to the following key requirements:
- Maximum ADU size: Detached ADUs are generally limited to 1,000 square feet or 50% of the primary dwelling's square footage, whichever is less.
- Setback requirements: ADUs must comply with specific setback rules that vary by zoning district, often requiring a minimum of 5 feet from side and rear property lines.
- Owner-occupancy: Bainbridge Island has historically required owner-occupancy for at least one of the units on the property, though regulations continue to evolve in line with Washington State law.
- Critical areas compliance: Given the island's sensitive ecosystems, including wetlands and shorelines, ADU projects may require additional environmental review under the city's Critical Areas Ordinance.
- Septic and utility considerations: Many Bainbridge Island properties rely on private septic systems, which must be evaluated and potentially upgraded to accommodate an ADU.
Why Hiring Local ADU Contractors in Bainbridge Island Matters
Working with local ADU contractors familiar with Bainbridge Island is a significant advantage. Island-based or island-experienced contractors understand the logistical challenges of building on an island, including coordinating material deliveries around ferry schedules, managing limited contractor availability, and working within the city's permitting timelines. The Bainbridge Island Department of Planning and Community Development oversees all building permits, and experienced contractors know how to streamline the approval process efficiently.
Types of ADUs Popular on Bainbridge Island
Given the variety of property types across the island, several ADU configurations are commonly built here:
- Detached ADUs (DADUs): Standalone backyard cottages that are especially popular on larger residential lots.
- Attached ADUs: Additions to existing homes, ideal for properties with limited yard space.
- Garage conversions: Converting existing detached garages into livable ADU spaces.
- Basement ADUs: Utilizing existing below-grade space for a cost-effective ADU solution.
Start Your Bainbridge Island ADU Project Today
Investing in an ADU on Bainbridge Island is a smart move in one of Washington's most sought-after communities. With rising housing demand and strong rental markets driven by Seattle commuters, a well-built ADU can deliver excellent returns. Connect with a qualified ADU contractor on Bainbridge Island today to discuss your project goals, understand local permitting requirements, and take the first step toward maximizing your property's potential.