Jack Barnes Architect, PC is a licensed architectural firm in Portland, OR, specializing in residential design including ADUs, garage conversions, JADUs, and backyard cottages. Located on SE Belmont Street, they help clients navigate permitting and design.

Jack Barnes Architect – ADU Contractor in Portland, OR

About Jack Barnes Architect

Jack Barnes Architect, PC is an architectural firm based in Portland, Oregon, located in the Southeast Belmont Street area. As a licensed architectural practice, they serve clients in the Portland metro region and surrounding areas.

Architectural Services in Portland

Jack Barnes Architect operates as a professional architectural firm in Portland, OR. While the firm's full range of services is best confirmed directly with the office, architectural firms of this nature in the Portland area commonly assist homeowners and property owners with residential design projects, including accessory dwelling units (ADUs).

Portland has become one of the more active markets in the country for ADU development, driven by local zoning reforms that have made it easier for homeowners to add detached ADUs, garage conversions, JADUs (Junior Accessory Dwelling Units), and in-law suites to their properties. Architectural design services play a key role in this process, helping property owners navigate permitting requirements and develop plans that meet city code.

ADU Design and Planning

For homeowners considering adding an accessory dwelling unit to their property, working with a licensed architect is an important step. An architect can assist with site evaluation, design development, permit drawings, and coordination with the local building department. Whether the goal is a backyard cottage, a granny flat, a Casita, or a converted garage, having proper architectural plans is typically required as part of the permitting process in Portland.

Jack Barnes Architect, PC is positioned in a neighborhood of Portland that has seen considerable residential development activity. Their location on Southeast Belmont Street places them within a community where ADU projects have become increasingly common as homeowners look to add housing options to their properties.

Working with Jack Barnes Architect

Those interested in learning more about what Jack Barnes Architect, PC offers are encouraged to reach out directly to the firm. As with any architectural engagement, it is worth discussing the specific scope of your project to confirm whether their services align with your needs, particularly if you are pursuing an ADU build or residential addition in the Portland area.

The firm is located at 2502 Southeast Belmont Street, Portland, OR 97214.

Services

Jack Barnes Architect performs the following services

  • Architecture & Design

Jack Barnes Architect Reviews

Paul Coppock

2026-03-12
"Jack is a delight. Whether starting from scratch with a client and listening to their wants, or coming to bat for us when an interior design team needs assistance on architectural details - he's a listener and collaborator through and through. He presents ideas in ways that clients can understand and metabolize. He notices tricky spots and helps us resolve them. He's got a great eye for detail. His plans are thorough. And he's easy to be around. Thank you, Jack, for all your work on our clients' behalf!"

Holloway Huntley

2025-07-27
"Jack is amazing to work with! I have built his designs for clients and worked with him on the design for my own home. He is an earnest listener, interested in creating spaces that really work for people. When working with Jack people can trust that he has the experience that is needed and the humble nature that makes the process enjoyable. I trust him completely in every regard - to design a beautiful structure, to ask the right questions, and to bring his best to every project."

Brad Swift

2025-07-22
"The remodel of our house was a large and intimidating project. Jack was a constant point of support throughout the process. The thoughtful and detail plans he created helped the project move along smoothly. After it was complete we have been able to appreciate his attention to detail as we notice his considered choices while we live in the space. We felt that he was always on our side and was the person we trusted most during the process. I recommended him for the plans on my parent's remodel and have nothing but positive feeling about his result and his process."

A N

2025-01-23
"Jack transformed our cute and cramped old riverfront farmhouse into a gorgeous modern home with sweeping views. Working with him was a pleasure every step of the way. It was important to us to work with someone who listened and incorporated our ideas and feedback into the design. Jack was patient and accommodating with changes we made during the design process. He took our wishes and made them a reality while also creating a beautiful and unified project that seamlessly blends the old and the new. We look forward to when we might be able to work with Jack again on future projects."

Lauren Chandler

2024-10-23
"Forever grateful and happy in my new home! I asked Jack to try to design my space to be a combination of two other spaces he designed. He did just that and then some. I couldn't love the design any more than I do. Due to the layout and high ceilings, it feels much more spacious than the actual square footage. Jack helped me with many smaller design decisions as well. He is professional, attentive, efficient, kind and knows how to listen. I moved into my ADU in 2018 and since then, Jack has been helpful when Ive had other ideas for smaller projects on my property like a shed. Hes very generous with his time and expertise."

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Specifics

In-House Architect

Opening hours

Monday 9:00AM - 5:00PM
Tuesday 9:00AM - 5:00PM
Wednesday 9:00AM - 5:00PM
Thursday 9:00AM - 5:00PM
Friday 9:00AM - 5:00PM
Saturday -
Sunday -

Location

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