Deane Home Services builds ADUs in South King County, WA, including garage conversions, basement remodels, and detached backyard cottages. Licensed, bonded & insured. Serving Kent, Renton, Federal Way & more.
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Greenpod Design builds custom DADUs in Washington using SIP construction and sustainable materials. They handle permits, ADA-compliant design, and energy-efficient builds. WA law allows up to two ADUs per lot, up to 1,000 sq ft.
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Carriage Houses NW is a Pacific Northwest ADU builder specializing in infill housing. They develop ADUs, duplexes, and townhomes, partner with homeowners, and offer fee-to-build services, leveraging WA State HB 1110 and HB 1337 legislation.
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Northwest ADU is a trusted ADU builder in Mill Creek, WA, offering full-service accessory dwelling unit construction, including detached ADUs, garage conversions, and basement conversions, with expert permit and zoning support.
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Bicknell Builds offers ADU construction in the greater Seattle area, including detached ADUs, backyard cottages, granny flats, and in-law suites. Ideal for rental income, family housing, or added property value.
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LYD Construction is a Seattle-area ADU builder & remodeling contractor with 25 years of experience. Services include kitchen, bathroom, basement renovations, deck building & ADU construction. Financing up to $200,000 available. Based in Bellevue, WA.
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Seattle's trusted DADU & ADU builder offers custom builds, ADU conversions, and prefab cabins. Transparent pricing, expert guidance, and hands-on construction help homeowners add lasting value with backyard cottages and granny flats.
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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.
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Chapman Projects offers ADU design and construction in Seattle, Bellevue, and King County. With 20+ years of experience, they provide custom accessory dwelling units, detached ADUs, and backyard cottages using sustainable building practices.
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Era Builders is a Seattle-based ADU contractor offering detached ADU construction, design, permitting, remodeling, and commercial renovations. They handle full ADU projects compliant with Seattle zoning rules, using sustainable practices.
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Tenhulzen Construction offers ADU and DADU construction services in Washington State, providing pre-approved and custom plans. Options suit various budgets and timelines, with benefits including added property value and flexible living spaces.
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H26 Builders is a Seattle ADU contractor offering attached ADUs, detached ADUs, and garage conversions. Services include design consultation, permitting support, and project management to help homeowners add functional living or rental space.
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Drew Thatcher Construction builds ADUs in Lakewood, WA, including detached units, attached ADUs, and garage conversions. Founded by a Navy nuclear engineer, they offer design-build services with local Pierce County expertise.
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Lindal Homes offers custom ADU and DADU kit home solutions across the US and Canada. Flexible floor plans, the Lindal Elements collection, and system-built construction make adding a backyard cottage or guest suite efficient and cost-effective.
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Haas Development & Construction offers ADU & DADU construction in Greater Seattle. They handle planning, permits, design, and builds for attached & detached units, including prefab DADU plans, helping homeowners add rental income or family housing.
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.