ADU Contractors near Port Townsend, WA
Volcano Builders
1750 112th Avenue Northeast, Bellevue, WA 98004
44.1 miles
Volcano Builders is a licensed, family-owned construction company serving Seattle, Bellevue & Monroe, WA. Specializing in kitchen remodels, bathroom renovations, home additions, deck builds, and ADU construction since 2021.
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Microhouse
114 North 42nd Street, Seattle, WA 98103
37.8 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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Evola Builds LLC
Poulsbo, WA 98370
27.1 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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Hammer & Hand
2450 6th Avenue South, Seattle, WA 98134
43.1 miles
Hammer & Hand is a Portland & Seattle general contractor with 30+ years of experience in new homes, remodels, ADUs & commercial builds. Employee-owned, they offer expert craftsmanship, custom woodwork & trusted subcontractor networks.
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Northwest ADU Bellevue
278 106th Avenue Northeast, Bellevue, WA 98004
44.5 miles
Northwest ADU builds custom detached ADUs, garage conversions & basement ADUs across Western Washington. Serving King, Pierce & Snohomish Counties with full-service ADU construction, build-ready plans & permit management.
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Anderbar Construction
12391 Glenwood Road Southwest, Port Orchard, WA 98367
47.6 miles
We specialize in building high-quality, custom Accessory Dwelling Units (ADUs) that provide both functionality and style for homeowners in Port Orchard, WA, and the surrounding areas. Whether you’re looking to add a rental property, create a cozy space for family, or simply expand your living area, an ADU is a versatile and valuable investment.
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J Hanby LLC
Edmonds, WA 98020
29.3 miles
J Hanby LLC offers ADU and basement conversion services in the Eastside area. Specializing in detached ADUs, garage conversions, granny flats, and basement renovations, they help homeowners maximize property value and ROI.
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Seattle Remodeling LLC
17202 Aurora Avenue North, Shoreline, WA 98133
32.7 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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Modern ADU Plans
3660 Lavender Ln NE, Bainbridge Island, WA 98110
33.1 miles
Explore pre-designed ADU floor plans from Modern ADU Plans — studio, 1-bed, 2-bed, garage conversions & more. Save time, reduce costs & maximize property value with ready-to-build accessory dwelling unit designs.
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Zee Design & Build
570 Kirkland Way, Kirkland, WA 98033
41.2 miles
Zee Design & Build is a Kirkland, WA ADU contractor serving King, Snohomish, Skagit & Island Counties. Offering full-service ADU construction—garage conversions, basement units, backyard cottages & more—since 2012.
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JayMarc Homes
7525 Southeast 24th Street, Mercer Island, WA 98040
44.8 miles
An Accessory Dwelling Unit (ADU) is an independent living space on a single-family property. Washington State's HB 1337 boosted ADU construction, easing zoning rules, removing owner-occupancy requirements, and capping impact fees at 50%.
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Elite Team Builders
701 5th Avenue, Seattle, WA 98104
41.6 miles
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.
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Blue Lake Construction
12721 Northeast Bel Red Road, Bellevue, WA 98005
44.9 miles
Blue Lake is a family-owned Washington State ADU contractor specializing in custom ADUs, DADUs, granny flats, and full-service construction. They offer fixed pricing, transparent communication, and skilled teams for residential and investment projects.
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Levite Construction CO
5608 17th Avenue Northwest, Seattle, WA 98107
36.6 miles
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.
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Interbay Construction
1020 108th Avenue Northeast, Bellevue, WA 98004
44.2 miles
Interbay Construction is a Washington State ADU contractor building guest houses, in-law suites, detached ADUs & backyard cottages. Quality materials, clear communication & reliable timelines for every accessory dwelling unit project.
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Other cities in Washington
What you need to know
ADU Contractors in Port Townsend: Building in a Historic Victorian Seaport
Port Townsend, Washington, is one of the best-preserved Victorian seaports in the United States, and its rich architectural heritage creates a unique environment for ADU contractors in Port Townsend. The city's historic districts, including the National Historic Landmark designation for much of its downtown and residential areas, mean that building an Accessory Dwelling Unit here requires careful attention to design standards and local guidelines. Experienced ADU contractors understand how to balance modern living needs with the preservation requirements that make Port Townsend so distinctive.
Local Regulations and Zoning for ADUs in Port Townsend
Port Townsend follows Jefferson County and City of Port Townsend zoning codes that govern ADU construction. ADU contractors in Port Townsend, WA must navigate specific rules, including:
- ADUs are generally permitted in single-family residential zones (R-I and R-II districts)
- Maximum ADU size is typically limited to 1,000 square feet or a percentage of the primary dwelling's square footage
- Setback requirements must be carefully observed, particularly in older, smaller lots common in Port Townsend
- Design standards in historic districts may require materials and aesthetics consistent with Victorian-era architecture
- Separate utility connections and owner-occupancy requirements may apply depending on the property type
Working with a knowledgeable ADU contractor in Port Townsend ensures that all permits are properly filed with the City of Port Townsend's Development Services Department and that your project meets both state and local building codes.
Types of ADUs Built in Port Townsend
Given the character of Port Townsend's neighborhoods, skilled ADU contractors commonly build several types of accessory dwelling units to suit the city's unique housing stock:
- Detached ADUs (DADUs): Standalone backyard cottages that complement the main residence
- Attached ADUs: Additions built onto an existing home, maintaining architectural continuity
- Garage Conversions: Transforming existing carriage houses or garages into livable spaces
- Basement ADUs: Converting lower-level spaces in older Victorian homes into independent units
Why Hire a Local ADU Contractor in Port Townsend?
Hiring a local ADU contractor in Port Townsend, Washington offers significant advantages. Local contractors are familiar with the city's permitting timelines, its historic preservation review process, and the specific challenges posed by the region's coastal climate, including moisture management and wind resistance. Port Townsend's relatively small lot sizes and older infrastructure also require contractors with hands-on experience navigating tight spaces and aging utility systems.
Whether you are looking to create rental income, house a family member, or increase your property value, an ADU in Port Townsend is a smart investment. Connect with a qualified, licensed ADU contractor today to explore your options and begin the planning process in this beautiful Pacific Northwest coastal community.