Neil Kelly Washington offers ADU design and build services in the Northwest, including detached ADUs, garage conversions, and attached units. Their team navigates local permits, balances design with functionality, and helps homeowners add value through custom accessory dwelling units.
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 pricing.
read more
Lakeside ADU & Home Planning, based in Lake Stevens, WA, is a full-service ADU builder serving the Puget Sound Region. They specialize in backyard cottages, mother-in-law suites, garage conversions, and new builds, managing design, permitting, and construction.
read more
At Puget Sound ADU Builders, we create functional and cozy and ADUs (Accessory Dwelling Units) in Washington. Our company was founded by Tanya Mills and built on a passion for providing high-quality, affordable housing solutions that unite families. With rising costs in traditional housing and care, we offer practical alternatives that allow your loved ones to live independently in comfortable spaces—right in your backyard.
read more
Sockeye Homes designs & builds custom ADUs and DADUs, offering full-service support from permits to construction. Fixed-cost packages range from $218K–$335K+, suiting retirees, families & rental income seekers.
read more
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.
read more
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 more
Exceptional Home Builders is a Seattle ADU contractor with 20+ years of experience. They offer full-service ADU construction, design-build, permitting, interior design, and renovations for backyard cottages, garage conversions, and basement units.
read more
Armada Design & Build Inc., Bellevue, WA, offers full-service residential design-build since 2011. Specializing in remodels, home additions, and custom builds across Puget Sound, they deliver turnkey solutions with in-house design and quality craftsmanship.
read more
Levite Construction Co is a Seattle-based family-owned general contractor offering kitchen remodeling, bathroom remodeling, ADU construction, garage conversions, new builds, interior design, and more across the Greater Seattle area.
read more
ADUs offer self-contained living with kitchen, bath & bedroom for rental or family use. Room additions expand existing home space. Above & Beyond Construction serves Seattle & Puget Sound homeowners with both project types.
read more
Elite Team Builders Inc. designs & builds ADUs—detached units, garage conversions & backyard cottages—in Seattle, Portland & Los Angeles. They offer custom design, quality materials & transparent pricing for lasting residential value.
read more
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.
read more
BB Builders Pro specializes in ADU construction, garage conversions, home additions, and detached backyard cottages. Services include custom design, permitting, zoning compliance, and renovations—ideal for rental income or family housing.
read moreFall City is a small, unincorporated community nestled in the Snoqualmie Valley of King County, Washington. Because Fall City is unincorporated, ADU (Accessory Dwelling Unit) projects here fall under King County's jurisdiction rather than a city municipality. This means that homeowners and ADU contractors in Fall City must work directly with King County Department of Local Services, Permitting Division to obtain the necessary approvals. The rural character of the area, combined with its proximity to the Snoqualmie River and surrounding wetlands, adds unique environmental considerations that experienced local ADU contractors must navigate carefully.
ADU contractors working in Fall City must be well-versed in King County's Title 21A Zoning Code, which governs accessory dwelling units in unincorporated areas. Key regulations include:
Hiring an ADU contractor with specific experience in Fall City and King County unincorporated areas is essential for a smooth project. These professionals understand the local permitting process, including how to submit applications through King County's online permitting portal and coordinate with county inspectors. They are also familiar with the challenges of building on larger rural lots, including managing stormwater, navigating steep slopes, and working within critical area buffers that are common throughout the Snoqualmie Valley.
Given the larger lot sizes typical of Fall City properties, homeowners often have more flexibility in the type of ADU they can build. Popular options include:
Whether you're looking to add rental income, house extended family, or increase your property value, working with a knowledgeable ADU contractor in Fall City, WA is the first step. Make sure your contractor is licensed in Washington State, carries proper insurance, and has a proven track record with King County ADU permits to ensure your project is completed efficiently and in full compliance.