ADU Contractors near Oregon City, OR
Clarkbuilt
2120 NE Oregon Street, Portland, OR 97232
11.7 miles
Clarkbuilt is a Portland, Oregon residential contractor specializing in custom homes, remodels, additions, and ADU construction. Founded in 2006, they offer expert accessory dwelling unit building, custom cabinetry, and serve clients across Oregon... read more
NW Tiny Homes
1110 Northeast Columbia Boulevard, Portland, OR 97211
16.3 miles
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
Westside ADU Builders
1960 Northeast 25th Avenue, Beaverton, OR 97124
22.3 miles
Westside ADU Builders is a licensed ADU contractor in Beaverton, OR, offering detached ADUs, attached ADUs, garage conversions, JADUs, and home additions. They manage design, permits, and construction from start to finish.
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ReCraft Home Remodeling
1623 Southeast 6th Avenue, Portland, OR 97214
11.8 miles
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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Rybak & Company LLC
19215 Southeast 34th Street, Camas, WA 98607
18.5 miles
Rybak & Company LLC builds ADUs in Vancouver, Camas, Washougal & Portland Metro. Services include detached ADUs, garage conversions & in-law suites. Projects start at $175K–$250K+. Free estimates available.
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Tweto Architecture
Portland, OR 97212
14.2 miles
Tweto Architecture specializes in ADU design, including detached ADUs, garage conversions & basement units. Serving Portland, Vancouver & Bend, they help homeowners add rental units, in-law suites & backyard cottages while navigating l... read more
Jason Allen Contracting, LLC
4804 Northeast 52nd Avenue, Portland, OR 97218
14.9 miles
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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Sert Construction
1528 Southeast Holgate Boulevard, Portland, OR 97202
10.6 miles
As a premier ADU contractor in Portland, Sert Construction specializes in designing and building high-quality, functional ADUs. Whether you're considering an added space for rental income, additional family space, or a home office, their team of e... read more
Suite Additions Portland
11825 Southwest Greenburg Road, Tigard, OR 97223
10.7 miles
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
Born and Raised Construction
2020 Southeast Bush Street, Portland, OR 97202
10.9 miles
Born and Raised Construction builds ADUs in Portland, including detached units, garage conversions, backyard cottages & in-law suites. Benefits include rental income, aging in place & increased property value.
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ADU PDX
2325 NE 19th Ave, Portland, OR 97212
13.9 miles
ADU-PDX is a Portland-based ADU builder with 30+ years of experience. They specialize in garage conversions, detached ADUs, granny flats & in-law suites, handling permits and zoning for hassle-free builds across the Portland metro area.
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Chumbley Construction
15408 NW Energia St, Portland, OR 97229
19.2 miles
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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Environs
3240 SW Sherwood Pl, Portland, OR 97201
12.1 miles
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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Soft Studios
1804 Northeast Martin Luther King Junior Boulevard, Portland, OR 97212
13.8 miles
SQFT Studios, founded in 2015, is Portland's leading ADU design-build firm. Specializing in detached ADUs, garage conversions & backyard cottages, they deliver Earth Advantage Platinum-certified, sustainable builds tailored to every homeowner.... read more
Alta Casa
5123 Northeast 94th Avenue, Vancouver, WA 98662
21.8 miles
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
Other cities in Oregon
What you need to know
ADU Contractors in Oregon City: Building in the Historic Heart of Clackamas County
Oregon City holds a unique distinction as the first incorporated city west of the Rocky Mountains, and its rich historical character shapes how development — including Accessory Dwelling Units (ADUs) — is approached. Nestled along the Willamette River and home to the famous Municipal Elevator, Oregon City blends historic preservation requirements with modern housing needs. If you're looking for experienced ADU contractors in Oregon City, Oregon, understanding the local landscape is essential before breaking ground.
Oregon City ADU Regulations and Zoning Requirements
Oregon City falls under Clackamas County jurisdiction for some areas, but the city itself has its own planning and zoning codes. ADU development in Oregon City must comply with the Oregon City Development Code, which outlines specific rules for both attached and detached ADUs. Key regulations include:
- ADUs are generally permitted in single-family residential zones (R-1, R-2, R-3)
- Detached ADUs typically cannot exceed 800 square feet or 75% of the primary dwelling's floor area
- Setback requirements must be met, usually a minimum of 5 feet from side and rear property lines
- Owner-occupancy requirements may apply depending on the specific zone
- Properties in historic overlay districts may face additional design review requirements
Why Hire a Local ADU Contractor in Oregon City?
Working with a licensed ADU contractor familiar with Oregon City's permitting process can save you significant time and money. The city's planning department requires building permits, and in some cases, design review approval before construction begins. A knowledgeable local contractor will understand how to navigate these steps efficiently, including coordinating with the Oregon City Public Works Department for utility connections and site development requirements.
Types of ADUs Commonly Built in Oregon City
Oregon City's varied topography — including hillside lots with dramatic elevation changes — influences the type of ADU that works best for a given property. Skilled ADU builders in Oregon City commonly construct:
- Detached ADUs – Standalone backyard cottages ideal for larger lots
- Attached ADUs – Additions connected to the primary home, popular on smaller urban lots
- Garage Conversion ADUs – Converting existing garages into livable space
- Basement ADUs – Utilizing existing below-grade space, common in older Oregon City homes
Investing in an ADU in Oregon City
With Oregon's statewide push to address housing shortages, ADUs in Oregon City represent a smart investment. They can generate rental income, provide multigenerational living options, or increase overall property value. Oregon state law (HB 2001) has also expanded ADU allowances statewide, giving homeowners more flexibility than ever. Partnering with a reputable, licensed and insured ADU contractor in Oregon City, OR ensures your project meets all local codes while maximizing your investment.