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ADU PDX

Oregon

ADU Designers

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Website

https://adupdx.com/

ADU-PDX is a Portland-based ADU builder specializing in the design and construction of custom accessory dwelling units throughout the Portland metro area. With more than 30 years of architectural experience and over a hundred completed ADU projects, the company has built a strong reputation for transforming underutilized spaces into functional, attractive, and highly livable homes.

As an experienced accessory dwelling unit builder, ADU-PDX works with homeowners, families, and property investors to create thoughtfully designed living spaces tailored to each property’s layout, zoning requirements, and long-term goals. Whether converting an existing structure or building a completely detached backyard cottage, their approach combines architectural expertise with practical project management.

Custom ADU Design & Construction Services

ADU-PDX offers a wide range of ADU and conversion services designed to maximize property functionality, flexibility, and value.

Services Include:

Detached ADU construction
Backyard cottage design and builds
Garage conversions into livable units
Basement ADU conversions
Spare room and interior conversions
In-law suite and granny flat construction
Stand-alone ADUs on vacant lots
Custom permit-ready ADU planning and design

Their team designs each project specifically for the property and client needs, ensuring the final result blends functionality, comfort, and aesthetic appeal.

A Thoughtful Approach to ADU Building

ADU-PDX follows a site-specific design philosophy focused on creating the right solution for each individual property. Their experience across a wide variety of lot types and zoning classifications allows them to efficiently design spaces that maximize both usability and long-term value.

Common Uses for Their ADUs:

Airbnb and short-term rental spaces
Long-term rental income units
Independent living spaces for family members
Guest houses and backyard retreats
Home offices and flexible living spaces

As a trusted granny flat builder and in-law suite builder, ADU-PDX helps homeowners create private, comfortable secondary living spaces while maintaining harmony with the main residence.

Permitting & Zoning Expertise

One of ADU-PDX’s core strengths is navigating Portland’s complex zoning and permitting requirements. Their team works directly with local municipalities to simplify the approval process for homeowners and developers.

Their Process Includes:

Property and zoning evaluation
ADU feasibility analysis
Site-specific architectural design
Permit preparation and submissions
Coordination with city and county departments
Project guidance from concept through approval

Their familiarity with Portland-area residential zoning classifications helps clients avoid common permitting delays and streamline the overall process.

Why Homeowners Choose ADU-PDX

Over 30 years of architectural experience
More than 100 completed ADU projects
Specialized expertise in Portland ADU regulations
Full-service design and project support
Experience with garage, basement, and detached ADUs
Customized site-specific design solutions
Strong focus on property value and functionality

ADU-PDX combines architectural knowledge, local expertise, and personalized service to help homeowners successfully add flexible living spaces to their properties.

A Mission Focused on Smart Urban Living

ADU-PDX believes accessory dwelling units play an important role in creating more flexible, sustainable, and efficient housing solutions in urban neighborhoods. Their projects are designed not only to add living space and rental potential, but also to enhance how homeowners use and experience their properties.

Whether building a detached backyard cottage, converting a garage, or designing a fully custom ADU, ADU-PDX delivers carefully planned solutions tailored to modern living in Portland.

Business Hours

Monday: 9:00 AM – 6:00 PM
Tuesday: 9:00 AM – 6:00 PM
Wednesday: 9:00 AM – 6:00 PM
Thursday: 9:00 AM – 6:00 PM
Friday: 9:00 AM – 6:00 PM
Saturday: Closed
Sunday: Closed

Service Area

Oregon

2325, Northeast 19th Avenue, Irvington, Portland, Multnomah County, Oregon, 97212, United States

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