Cornerstone Builders Inc offers full-service ADU construction, including custom design, utility connections, and interior finishes. Specializing in detached ADUs, garage conversions, and JADUs, they use energy-efficient materials for functional, l... read more
The Powell Group is a Portland-area custom home and ADU builder led by Mitch Powell, with 20+ years of experience. They've completed 500+ homes and 30+ ADU projects, offering expert construction from planning to completion.
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Conrad Construction is Portland's trusted ADU builder with 20+ years of experience. Specializing in backyard cottages, garage conversions, granny flats & detached ADUs, they handle permits, design & construction to boost property value.read more
Stellar Construction & Remodeling builds ADUs in Damascus, OR, managing permits, design, and construction for rental units, guest houses, or in-law suites. They handle detached and attached configurations, ensuring full code compliance and cer... read more
Shelter Solutions, Portland's trusted ADU builder since 1997, has completed 250+ accessory dwelling units. Offering full design-build services—from permits to occupancy—they specialize in custom detached ADUs, backyard cottages, and in-law sui... read more
Aim High ADU Solutions is a trusted ADU contractor in Hillsboro, OR, specializing in accessory dwelling unit construction. They offer expert planning, quality craftsmanship, and client-focused service to help homeowners expand their living space e... read more
For more than 15 years, we’ve turned backyards into beautifully crafted living spaces. From permits to finishing touches, our team knows every step inside and out. Choose the classic charm of our Traditional Series, the clean lines of our Modern... read more
Home Remodel Portland builds code-compliant ADUs including garage conversions, backyard cottages, and basement units. They handle permits, zoning, and inspections with local expertise, offering a clear process and three-year warranty.
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Build Forward is an ADU contractor helping homeowners add accessory dwelling units to boost property value, generate rental income, and create flexible living spaces like granny flats, in-law suites, or detached ADUs.
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Adair Homes offers custom ADU builder solutions, including stand-alone and attached accessory dwelling units. With a six-step building process, financing via Basis Home Loans, and expert guidance, Adair simplifies new home and ADU construction.read more
Das Chapin Design specializes in ADU design, garage & basement conversions, and general contracting. Offering permit support, construction consultation, and full build services via ADU Design & Build, LLC, they create efficient, livable sp... read more
Highland Ridge Remodeling helps Portland homeowners build accessory dwelling units (ADUs), including detached ADUs, garage conversions, and in-law suites. From design to permitting and construction, they deliver tailored, high-quality living space... read more
Lamont Bros. Design & Construction is a Portland, Oregon ADU contractor offering full design-build services. They help homeowners plan and build accessory dwelling units, including detached ADUs, garage conversions, and JADUs for rental income... read more
Jason Allen Contracting, LLC is a Portland-based contractor specializing in ADU construction, home additions, basement remodeling, kitchen and bathroom renovations, garage conversions, and master plan design services for homeowners.
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NW Tiny Homes (Portland, OR) builds ANSI-certified park model RV tiny homes starting at $49,900, delivered in 8-14 weeks. A faster, affordable alternative to traditional ADUs, with eight customizable floor plans, financing options, and in-house wa... 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.