--- title: "Polymath Studio — Architects & Building Designers | Houzz" canonical_html_url: https://www.houzz.com/professionals/architects-and-building-designers/polymath-studio-pfvwus-pf~814274247 markdown_url: https://www.houzz.com/md/professionals/pf~814274247.md entity_type: LocalBusiness business_name: "Polymath Studio" category: ["Architects"] image: https://st.hzcdn.com/fimgs/4b53d27808fe3b34_0271-w400-h400-b0-p0--.jpg address: "1555 SE Holly St, Portland, Oregon 97214, United States" latitude: 45.5142 longitude: -122.6364 phone: "(503) 593-0954" website: http://polymathstudio.com rating: 5 review_count: 3 best_of_houzz_awards: 1 followers: 17 last_updated: 2026-09-22 --- # Polymath Studio Original Houzz profile: [Polymath Studio](https://www.houzz.com/professionals/architects-and-building-designers/polymath-studio-pfvwus-pf~814274247) ## Professional summary - **Primary category:** Architects - **Location:** Portland, OR - **Serves:** Portland, Hillsboro, Beaverton, Tigard, Aloha, Lake Oswego, Bethany, Tualatin, Happy Valley, Milwaukie, Lents, Cedar Mill, Oak Grove, Oatfield, Gladstone, Oak Hills, Damascus, Rockcreek, Cedar Hills, West Haven-Sylvan, Jennings Lodge, Garden Home-Whitford, West Slope, Sunnyside, Clackamas, Raleigh Hills, West Haven, King City, Metzger, Durham, Maywood Park, Rivergrove, Johnson City, Marylhurst, Mill Plain, Minnehaha, Orchards, Vancouver, Walnut Grove - **Houzz rating:** 5.0 out of 5 (3 reviews) - **Best of Houzz:** 1 award (2024), for Service. ## About ### Houzz Badges - 250 Ideabook Saves POLYMATH is a full-service Architecture and Design studio, based in Portland, Oregon, serving the Pacific Northwest and beyond. We specialize in: HOUSES: Clean lines, an honest expression of material and structure, abundant light and air, and a strong connection to nature. ADDITIONS: Add that second story or bump out the back—turn your current house into the house of your dreams. ADUS: Live small, embrace multi-generational living, or earn rental income. Help find the Missing Middle. MULTI-FAMILY: Simple designs, elegant details, and high quality living spaces. SUSTAINABILITY: Certified Passive House Consultant. LEED Accredited Professional. Save the planet and on your utility bills. ### Services Provided - Architectural Design - Building Design - Home Remodeling - Architectural Drawings - Custom Homes - New Home Construction - Home Additions - Home Extensions - Kitchen Design - Sustainable Design - Kitchen Remodeling - Energy-Efficient Homes - Green Building - Bathroom Design - Space Planning - Universal Design - Pool House Design & Construction - Drafting - Historic Building Conservation - Barn Design & Construction - Attic Conversion - Passive Solar Heating & Cooling - Rooftop Deck Installation - Earthquake Retrofitting ### Areas Served - Portland - Hillsboro - Beaverton - Tigard - Aloha - Lake Oswego - Bethany - Tualatin - Happy Valley - Milwaukie - Lents - Cedar Mill - Oak Grove - Oatfield - Gladstone - Oak Hills - Damascus - Rockcreek - Cedar Hills - West Haven-Sylvan - Jennings Lodge - Garden Home-Whitford - West Slope - Sunnyside - Clackamas - Raleigh Hills - West Haven - King City - Metzger - Durham - Maywood Park - Rivergrove - Johnson City - Marylhurst - Mill Plain - Minnehaha - Orchards - Vancouver - Walnut Grove ### Typical Job Cost $50,000 - 750,000 Costs ranges from a modest remodel to a full custom home. This includes the cost of construction. Design fees not included. ## Business Details | Field | Value | | --- | --- | | Business Name | Polymath Studio | | Address | 1555 SE Holly St, Portland, Oregon 97214, United States | | Phone | (503) 593-0954 | | Website | http://polymathstudio.com | | Followers on Houzz | 17 | ## Contact - **Houzz profile:** [Polymath Studio](https://www.houzz.com/professionals/architects-and-building-designers/polymath-studio-pfvwus-pf~814274247) - **Website:** http://polymathstudio.com - **Phone:** (503) 593-0954 ## Credentials **Certifications & Awards** - LEED Certified - **Best of Houzz:** 1 award (2024), for Service. ## Reviews **Overall rating: 5.0 out of 5 — 3 reviews** *Aspect averages:* - Work Quality: 50.0 - Communication: 50.0 - Value: 50.0 ### All 3 reviews **★★★★★ — Jeff and Lisa, Dec. 2023** > We worked with Sean and Oliver in designing an addition so that we could live on one level in our existing three story house. It includes a bedroom, a walk in closet, a large bath and a laundry room. The design was challenging as there was a setback from the neighboring property that had to be respected and the room is elevated with a complex roof and supported by posts. We wanted it to visually integrate with the exterior of the house and to have sight lines to take advantage of the best views. Sean and Oliver had creative ideas to address the challenges; they met with us here and at their office multiple times, and worked with us diligently. The result is really beautiful. They were receptive to last minute changes. We are very happy with our interaction with Polymath and recommend them highly to anyone considering creative design for any type of construction. **★★★★★ — Jennifee Lee, Feb. 2021** > Working with Sean at Polymath was a dream. He not only listened to our needs and created a beautiful, functional kitchen plan for us but added features we didn’t even know we wanted but now wouldn’t do without. He has a great eye for design and offers excellent options when things get tricky (as can happen when you’re dealing with an old home). We love how he managed to take our 1920s bungalow and turn it into a modern, open space that still has all the original features we love. **★★★★★ — Right Arm Construction, April 2017** > Right Arm Construction has worked with Sean Barnett of Polymath Studio on various projects like house lifts, multi-unit remodels and 2 story additions. Sean is always an integral part of the project team working with the clients and Right Arm Construction through the remodel process. He provides creative design insight and helps problem solve if any issues arise. We always recommend Sean and Polymath Studio to potential clients that are in search of an architect. ## Selected projects - [Contemporary Accessory Dwelling Unit Build](https://www.houzz.com/hznb/projects/contemporary-accessory-dwelling-unit-build-pj-vj~3136963) - Location: Portland, OR - Photos: 7 - Description: A contemporary lofted ADU in Southeast Portland. - [Farmhouse Kitchen Renovation](https://www.houzz.com/hznb/projects/farmhouse-kitchen-renovation-pj-vj~3136968) - Location: Portland, OR - Photos: 8 - Description: A tasteful modernization of a 1904 home in Portland’s Ladd’s Addition Historic District. This project also included a dining room built-ins along with a powder and full bathroom remodel. - [Modern 2-Story Addition- Portland](https://www.houzz.com/hznb/projects/modern-2-story-addition-portland-pj-vj~3136973) - Location: Portland, OR - Photos: 7 - Description: A contemporary, yet sympathetic, addition to a 1925 bungalow. Included at Family Room, Workshop, Master Suite, and Laundry Room. - [Unfinished Garage Accessory Dwelling Unit- Portland](https://www.houzz.com/hznb/projects/unfinished-garage-accessory-dwelling-unit-portland-pj-vj~3136970) - Location: Portland, OR - Photos: 7 - Description: A conversion of an historical garage into an ultra-compact studio apartment. - [Rustic Accessory Dwelling Unit Build](https://www.houzz.com/hznb/projects/rustic-accessory-dwelling-unit-build-pj-vj~3136978) - Location: Portland, OR - Photos: 6 - Description: A 550sf dwelling with a lofted sleeping area and beautiful exposed-structure wood ceiling. - [Ladd’s Addition Bathroom](https://www.houzz.com/hznb/projects/ladds-addition-bathroom-pj-vj~2472952) - Location: Portland, OR - Photos: 4 - Description: This home was built in 1904 in the historic district of Ladd’s Addition, Portland’s oldest planned residential development. Right Arm Construction remodeled the kitchen, entryway/pantry, powder bath and main bath. Also included was structural work in the basement and upgrading the plumbing and electrical. [See all 6 projects](https://www.houzz.com/professionals/architects-and-building-designers/polymath-studio-pfvwus-pf~814274247) --- *Source: Houzz professional profile. Reflects the profile as of 2026-09-22.*