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ADU Contractors in Boulder

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Boulder / 50 mi
Accessory Dwelling Units
1 – 15 of 389 professionals
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389 Professionals

Featured Reviews for ADU Contractors in Boulder

TRAD Design + Build
ADU Contractors in Boulder
Average rating: 5 out of 5 starsAugust 16, 2018
“We can’t say enough great things about TRAD. To start, we live in a split/bi-level which is not a structure architects always love to work with. We actually talked to several and had plans drawn up with two. TRAD was the first team to truly understand our vision and realize it. They fundamentally changed the personality of our house in a way that we could not envision on our own. We also appreciated TRAD's unique ability to make every aspect of the home functional. In our remodel, we weren't looking for square footage, rather we wanted to make sure every square inch we had was actively used. The TRAD team excels in this area. We truly “live” in every inch of our remodeled home. A few more odds and ends for anyone considering TRAD for their project. Their cabinetry work is stunning! They are true craftsmen. Last but not least - the project management was outstanding. They are your advocates and the voice of reason during the chaos of remodel! This is truly a special firm. We could not be happier!”
Mark Hammer Construction LTD.
ADU Contractors in Boulder
Average rating: 5 out of 5 starsFebruary 12, 2019
“I enjoyed working with Mark & his crew. Besides being professional, their work was perfection. They showed up on time and stuck with the job until completion.”
Built by Krueger
ADU Contractors in Boulder
Average rating: 5 out of 5 starsFebruary 9, 2016
“It is clear to all of us here at Green Landscape Solutions, that Built By Krueger is one of the best general contractors in the Boulder County area. We’ve had a strong business relationship with this company for several years. During that time we’ve found that Kruegers excel at communicating with their clients and subcontractors. They outclass their competition by a wide margin; by paying attention, providing an excellent value for their work, and demonstrating a commitment to providing the best customer service.”
James Lyon General Contracting LLC
ADU Contractors in Boulder
Average rating: 5 out of 5 starsAugust 5, 2015
“I had numerous items that I needed completed. Jim completed everything on time, within the estimate he had provided and did an excellent job. If I noticed anything that I had a question about or wanted adjusted he did it without any issue or complaint and if it impacted my budget or timeline he let me know. He was also very helpful in coming up with suggestions and alternatives on how things could be done. I had him work on my barn doors - 2 doors that were on the same track. The barn doors had been installed by someone else and when the doors were together they didn’t hang straight and were only wide enough to just cover the opening, the doors were missing a door stop in the middle, so unless you stopped the doors exactly in the middle there would be a gap on one side or the other. They had also installed guides on the bottom that I did not like as they stuck out into the opening and were screwed to the hardwood floor. Jim added sections to both sides of both doors, so that it looked like it was part of the pattern of the door and was meant to be there. The addition of the sections provided the coverage for the opening that I wanted. He put in stops for both the middle and the end so that the doors would properly stop. He took off the old guides on the bottom and installed guides that were attached to the wall and didn't stick out into the opening. He also filled in the holes in the hardwood floor so that I can't tell where they had been and leveled the doors so that they hung straight. I am now very happy with my barn doors! He also installed knobs and handles on all my cabinets and drawers in the kitchen, laundry room and bathrooms. He listened to what I was looking for, offered me a couple of suggestions on the style and then installed them and they are great. He moved some towel racks and he did a great job. I can't tell on the wall where the towel rack used to be. I was very impressed with how well everything was done and would definitely use him again.”
Brad Dassler-Bethel . Architect
ADU Contractors in Boulder
Average rating: 5 out of 5 starsMay 17, 2017
“My family and I really enjoyed working with Brad Dassler-Bethel! He listened to each of our requests and was able to create our dream house down to the last detail! Not only is he very talented and creative, but he is also a pleasure to work with!”
Seawolf Development
ADU Contractors in Boulder
Average rating: 5 out of 5 starsFebruary 1, 2022
“Bryan has done some exterior work on our 1930s house that I couldn't find anyone else who would even consider the job. His team was quick, efficient, and friendly. We enjoyed the experience so much that we had him do a full kitchen remodel. The kitchen project was affected by covid and supply chain issues, so we had some delays and had to make some different choices due to price fluctuations, but Bryan was very communicative and honest during the process. He and his team find ways to get things done rather than take the easy way out or make excuses. The kitchen is beautiful and functional. I strongly recommend Seawolf and Bryan for any interior or exterior work you might be considering.”
Hampton Architecture
ADU Contractors in Boulder
Average rating: 5 out of 5 starsAugust 17, 2015
“First – know that Hampton Architecture is fantastic to work with. Hampton Architecture assisted my wife and me in making our vision of a modern off-grid cabin a reality. The services started with education and consultation. Hampton Architecture worked with us to collect our idea, and worked within constrains we set. Hampton Architecture painted a clear picture of the process (from concept to Certificate of Occupancy). Ethan presented a design that incorporated all of our objectives for this special property. He even took the time for an extensive site visit to capture the feel of the living land, the view angles, the topography, landscape and colors. I have minor building experience and we were not sure of the reliability of local trades in the remote mountain location – above Marble, CO. Hampton Architecture took care of all the details to get us an approved building permit with Gunnison County (one of the more stringent building code requirement Counties in the State of Colorado). Hampton Architecture proposed a building solution that would minimize our need for local labor – SIP. During the build, Ethan was available for the very few time necessary to clarify plan details – there were 4 total clarifications needed. In the end, we finish with a cabin of our dreams, built within the schedule and budget that we could afford. I’m happy to recommend Hampton Architecture to anyone how needs help turning a vision into a reality.”
Natural Construction
ADU Contractors in Boulder
Average rating: 5 out of 5 starsJune 11, 2013
“Natural Woodworkers completed a full remodel of our home including exterior and interior elements. We enthusiastically recommend them! They gave us a new kitchen, bathrooms, hardwood floors, tile work, custom cabinets and all the details perfectly done to my wife's quite exacting standards. Let me also mention the pergola, siding and important fixes our 40 year old home needed. Now our home is like new. The former owner drove by one day and begged us to give him a tour. He was so impressed that he pleaded to have us show it to his wife later that day! Aside from the excellent work these craftsmen do, you will find they are just plain great people. We actually missed them when they were finished. I whole heartedly recommend these guys. Come see my place if you think I'm exaggerating.”
Forward Architecture, LLC.
ADU Contractors in Boulder
Average rating: 5 out of 5 starsJuly 24, 2020
“I pretty much knew want I wanted to do with my project. I warned Ellen I knew enough about architecture to be dangerous. Ellen recognized my requirements and was instrumental in identifying other considerations needed for the project. Included was a need for a code variance (setback). I was informed by the city, before starting the project, a code allowance(variance) was not required. Ellen’s code research was right. A code allowance was required. With her help, the review board approved the code allowance request unanimously. Our project involves bumping the attached garage eight feet to allow for a utility room between the garage and house. The design includes moving the washer and dryer out of the basement. As simple as the project sounds, there is a lot involved. Ellen listened to my wife’s concerns and ideas on the project. Together we achieved a very efficient design. We are now in the permit and construction phase of the project. I am looking forward to Ellen’s input. Ellen deserves your serious consideration.”
Homework Design.Build.Remodel
ADU Contractors in Boulder
Average rating: 5 out of 5 starsDecember 20, 2022
“Will & his team skillfully executed my vision for our hall bath update. Hired after a botched start with another contractor, they jumped in to save the situation. Will was easy to work with & checked in regularly as the project progressed. They pressed through to make sure every detail was brought to completion, even when challenges emerged. The team was skilled, respectful of our home, our time, and easy to work with. I still grin every time I walk in to (or even past) the bathroom Homework Remodel and Repair completed for us. Highly recommend!”
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ADU Contractor FAQs
Just answer a few questions to get matched with a local ADU Professional.
Or browse through the list of trusted ADU Professionals in Boulder on Houzz: See Boulder ADU Professionals’ profiles, dive into their work photos and check out customer reviews.
  1. Reach out to the pro(s) you want, then share your vision to get the ball rolling.
  2. Request and compare quotes, then hire the ADU Professional that perfectly fits your project and budget limits.
The most popular ADU Professional Services in Boulder are:
  • ADU Design and Planning
  • ADU Construction and Installation
  • ADU Conversion
  • ADU Permitting and Code Compliance
  • Accessory Dwelling Unit Architectural Services
  • ADU Interior Design
  • ADU Consultation and Project Management
There are 414 ADU Professionals, registered on Houzz in Boulder.

An accessory dwelling unit (ADU) is a separate living space that can be added to your property. It functions as an additional dwelling on the same land where your main home is located. ADUs have their own amenities and entrance, providing a self-contained living area. Unlike a traditional home, an ADU cannot be sold separately and is considered part of the same property.

ADUs are subject to specific zoning regulations and building codes in Boulder. These regulations determine where and how an ADU can be constructed, ensuring compliance with local laws and requirements. It’s important to consult with local authorities or a professional contractor who is familiar with ADU regulations in your area to understand the specific legal differences and ensure your ADU meets all necessary criteria.

Consider these options for cost-effective ADU:
  1. Prefabricated ADUs: Affordable and easy to assemble, they’re a practical choice. Many prefab ADUs cost under $100,000.
  2. Traditional Construction: Work with an ADU contractor to find budget-friendly options and make smart choices.
Tips for cost-effective ADU construction:
  1. Define your needs: Determine the purpose of your ADU, whether it’s for family, rental income, or a home office.
  2. Consult a contractor in Boulder: Their expertise can help with cost-effective materials, designs, and planning.
  3. Prefabricated components: Consider using prefabricated elements like cabinets or bathroom fixtures to save time and money.
  4. Explore financing options: Look for ADU-specific loans or programs to help cover costs.
Ensure compliance with local regulations and seek professional advice. A knowledgeable contractor can make the process smoother and cost-effective.
Why Hire Accessory Dwelling Units on Houzz?
389Local Pros on Houzz Who Serve Boulder, CO
1M+Total Number of Reviews Left by Homeowners
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