Partnering with Portland & Willamette Valley’s best craftsmen to build the area’s most innovative & efficient ADUs

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Empowering families, elevating communities

ADU Design & Build has turned over dozens of empty basements and unused garages and backyards into beautiful new homes and income-producing rental properties.

We know that while building a new home is incredibly exciting and rewarding, it can also be stressful and financially painful — which is why we not only manage all phases of the process for you, but are fully transparent about costs and timeline prior to project kickoff, so you can avoid commonly hidden expenses and other challenges entirely, and actually enjoy all the fun parts of ADU planning and development!

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“Experience the Ultimate ADU Solution: Tailored to Your Lifestyle, Built to Last, and Hassle-Free from Start to Finish!”

Trevor guides each new client through the preliminary planning phase, while also overseeing every detail of active projects. He got his start in construction nearly two decades ago doing full custom home building, and then moved into large, multi-phase remodeling for historic homes. Later, he began focusing on ADUs, quickly fell in love with the unrivaled efficiency and freedom they generated for his clients, and the rest is history!

Passionate about creating beautiful, custom spaces, and committed to innovative design, Trevor is proud to work with a team of Portland and Willamette Valley’s best craftsmen to tailor every detail of your ADU to support your unique goals and lifestyle. He founded ADU Design & Build in 2017 to bring his robust expertise and enthusiasm for ADUs to the forefront of a city struggling with infill development, and is deeply motivated by the prospect of unlocking value for families, and producing alternative housing opportunities that strengthen local bonds, increase neighborhood confidence, and foster community pride.

Trevor resides in Aurora with his wife Madeline, and their two rambunctious young boys. When he’s not consulting on or managing an ADU project, you’ll likely find him hiking Oregon’s backcountry, taking his sons to the nearest swimming hole or on an epic camping expedition, playing guitar, or bringing Madeline’s latest home remodel or improvement wish to fruition.

To consult with Trevor about a project, please reach out via our contact form.

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Das brings his extensive knowledge of permitting, zoning, and building code knowledge to the table, overseeing our design process.

Starting out in the early eighties making furniture and, later, theatrical scenic design, he subsequently moved his focus to concentrating on alternative construction techniques involving strawbales, earthen plaster, hand hewn timber frames, and super insulated envelopes. Within a few years going all in on the alternative community movement, Das spent ten years designing and building domiciles, temples and healing facilities.

Eventually the sea called him away to the island of Nantucket where he supervised the building of mega homes for the rich and famous. After a few more life changes he packed up and headed west along the Lewis and Clark Trail, landing in Portland. And here he is fully embracing the PDX construction scene, bringing all those years of design and building expertise with him.

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“We had an old shed and they spent considerable time trying to see if we could use the existing structure. Unfortunately we could only use the foundation but we are so happy with the build and we have a very successful AirBnB going on now.

We get so many comments on how well-designed it is and how spacious it feels even though it is only 460 square feet. They worked with us through all the issues and were patient and communicative about many design changes I considered. The price was very reasonable also.

It was the best decision we could have made to get our ADU built and they made it happen for us. Thanks!!!”


We love that you’re considering our premier design & build process to make your dream ADU a reality.

Whether you’re looking to generate additional passive income, create multigenerational housing for your loved ones, or add more valuable living space to your property for yourself and/or visitors, we can’t wait to hear from you.

Please complete and submit the form below, and we will be in touch within 3 business days.

If you're unsure about completing the form, you're welcome to email our founder and lead estimator directly at