Marksymov Brownstone LLC is a licensed Seattle ADU contractor offering basement, garage & attic conversions. They handle design, permits & construction, ensuring code compliance across Seattle, Bellevue & Kirkland.
read more
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.
read more
Avio Homes is a Seattle-based ADU contractor specializing in detached ADUs, backyard cottages, and in-law suites. Serving Seattle, Tacoma, and Olympia, they handle design, permitting, and construction with local zoning expertise.
read more
Gordon T. Jacob is a family-run ADU builder and home remodeling contractor in South Puget Sound. Specializing in detached ADUs, backyard cottages, middle housing, and full home renovations in the Tacoma area.
read more
Giant Builders Seattle is a Kent, WA general contractor with 20+ years of experience offering ADU construction, garage conversions, kitchen & bathroom remodeling, room additions, roofing, deck building, and more.
read more
Cruvers Contracting LLC builds ADUs in Snohomish, WA, tackling rural challenges like septic systems, slopes, and wooded lots. Serving areas including Lake Stevens, Monroe, and Everett with phased planning and durable, site-specific construction.read more
Gravity Builders LLC is a licensed ADU contractor and custom home builder in Renton, WA. Specializing in ADU/DADU construction, custom homes, outdoor living spaces, and concrete work, they deliver quality craftsmanship with transparency and integr... read more
Olympic View Building is an ADU contractor offering detached ADU construction, garage conversions, in-law suites, granny flats, and JADU services. They help homeowners add value and living space while navigating zoning laws and building codes.
read more
True Built Home builds custom ADUs in Washington & Oregon, offering 14 floor plans from 495–1,199 sq ft, priced from $119,900. Plans include granny flats, in-law suites & backyard cottages with transparent pricing and customizable design... read more
The DADU Guy is a Tacoma-based detached ADU builder serving Pierce County, WA. Specializing in DADUs, garage conversions, and basement conversions, they offer 5 floor plans, guaranteed pricing, and full project management to maximize property valu... read more
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 assess... read more
Seattle Backyard Homes builds expert ADUs, DADUs, garage conversions & backyard cottages in Seattle and Bellevue. Full-service ADU contractors handling design, permits, zoning & construction with quality craftsmanship and transparent prici... read more
Seattle's 2019 ADU law changes made it easier to build accessory dwelling units on single-family lots. DADUs can't exceed 50% of the main home's size. No parking required. New detached ADUs start around $350,000.
read more
Twin Brothers Group is a licensed framing contractor in Washington State specializing in ADU, DADU, garage conversions, and home additions across King and Snohomish County, serving Seattle-area GCs and owner-builders.
read moreBainbridge 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.
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:
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.
Given the variety of property types across the island, several ADU configurations are commonly built here:
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.