Tiny Heirloom is a family-owned tiny home builder offering custom, prefab, and pre-owned homes. They serve residential and commercial clients, including ADUs, resorts, and workforce housing, prioritizing quality craftsmanship and intentional livin... read more
MyADU is a licensed ADU contractor in Vancouver, WA, specializing in custom accessory dwelling units across the Pacific Northwest. Founded in 2019, they offer design, permitting, and turnkey builds, completing most projects in 6–9 months.
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Arciform is a Portland-based ADU design/build firm specializing in accessory dwelling units, including garage conversions, detached ADUs & in-law suites. They handle permits, historic properties & full construction.
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Environs is a woman-owned design-build firm in Portland, Oregon, specializing in ADUs, home additions, remodels, and new construction. Licensed Oregon contractor (CCB 188377) with availability for projects breaking ground summer 2026.
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JCS Construction LLC builds custom ADUs in Oregon, including detached backyard cottages, granny flats, garage conversions, basement conversions, and pole building ADUs. They handle both standard and non-traditional structures with quality craftsma... read more
Integrity Timber Frame offers custom prefabricated timber frame home, cabin, and ADU kits in South Dakota. Using their TruFit™ System and SIPs panels, they deliver strong, energy-efficient, sustainable structures with faster assembly and potenti... read more
Peton Construction LLC, founded by Austin Peton in 2015, serves the Portland metro area with residential construction services including ADU builds, home additions, bathroom remodels, renovations, decks, and patio covers.
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Suite Additions Portland specializes in ADU construction, garage conversions, home additions, and accessibility remodeling in the Portland metro area. Led by Tim Jorgens (CCB #201364), they offer full-service design, permitting, and build solution... read more
Chumbley Construction is a full-service ADU contractor offering turn-key solutions including garage conversions, in-law suites, detached ADUs, and Airbnb-ready units. They handle permits, design, and construction. Free estimates available.
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Alta Casa Remodeling is a Vancouver, WA ADU builder specializing in accessory dwelling units, garage conversions, in-law suites, and home additions. They also offer kitchen, bathroom, and full home remodels, backed by a one-year workmanship warran... read more
With over 50 years in residential & commercial construction, house lifting, and house moving - you can rest assured that your project will be handled with insight and care. At Emmert International, we’re here to make your ADU project a succe... read more
ReCraft Home Remodeling is a Portland-based contractor specializing in whole house remodels, kitchen, bathroom, basement renovations, and ADU construction, known for clear communication, careful planning, and on-time, on-budget delivery.
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SQFT Studios, founded in 2015 by Architect Eli Green, is a Portland-based ADU builder specializing in detached ADUs, garage conversions, backyard cottages, and guest suites, with 10+ years of experience.
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Neil Kelly designs & builds ADUs in the Northwest, including detached cottages, garage conversions, basement/attic conversions & attached units. Expert team handles permits, local regulations & custom design for rental income, guests o... read more
Lake Oswego, Oregon, is known for its high property values, scenic lakefront neighborhoods, and strict community standards. Building an Accessory Dwelling Unit (ADU) in Lake Oswego requires working with experienced ADU contractors who understand the city's unique zoning codes, design expectations, and approval processes. With median home values well above the state average, homeowners in Lake Oswego often invest significantly in ADU construction to maximize their property's potential — whether for rental income, multigenerational living, or increased resale value.
Lake Oswego follows Oregon's statewide ADU legislation, which has progressively expanded ADU rights for homeowners. However, the city also enforces its own Community Development Code (CDC), which ADU contractors must carefully navigate. Key regulations include:
Working with an ADU contractor experienced in Lake Oswego is essential for a smooth permitting and construction process. Local contractors are familiar with the city's planning department, inspection requirements, and the specific expectations of Lake Oswego's design review boards. They can help homeowners avoid costly delays and ensure that all plans meet both state and local building codes from the start.
Given the variety of property types in Lake Oswego — from lakefront estates to hillside homes — ADU contractors in the area work on a range of project types, including:
If you're considering adding an ADU to your Lake Oswego property, partnering with a qualified and locally experienced ADU contractor is the most important first step. From initial design and permitting through final construction, the right contractor will help you navigate Lake Oswego's regulations efficiently while delivering a high-quality living space that reflects the community's elevated standards.