We provide

art, architecture and design & build

services to our clients to assist in designing, planning, visualizing, and realizing your project in a collaborative environment.

For over two decades we have worked with a diverse range of clients from individual homeowners to city agencies. Through our design studio and building workshop rhiza A+D offers a rigorous design and development process from idea generation and planning, construction documentation and permitting, digital and physical modeling to full-scale prototypes and products. When designing architecture and public artworks we listen to and work closely with our clients through all phases of the project as needed; initial planning & programming, schematic design, design development, structural engineering coordination, energy analysis with mechanical, electrical and plumbing coordination, construction documentation, acquiring permits, bid & schedule estimating & negotiating and construction administration. When building public art or art installations our process starts with hand drawings and developments through parallel digital and physical modeling. Our workshop is an idea laboratory where wood, metal, plastics, foam, clay and re-purposed materials are shaped into beginning sketches and gestures of an idea. From here we move our concepts from paper, digital and sketch models into fabrication of full scale artworks. Our workshop supports our ability to create and fabricate in a range of scales. From architectural mock-ups & full-scale building components to the production of large scale sculptures and complex structures. The workshop is certified in steel and aluminum welding as well as equipped to assemble a wide array of materials as projects require. Our studio and workshop function in tandem to deliver innovative, efficient, tested and sustainable works of architecture and art.

We are

a design studio & building workshop

founded in 2005 and located in Portland, Oregon. Partners Ean Eldred, Richard Garfield, John Kashiwabara, and Peter Nylen have been working together since the mid 90's designing architecture and building public art, interior and exterior furnishings, lighting, gallery art installations and theater sets. Rhiza stems from the word rhizome- a root system that is collaborative, diverse, and adaptable. For us, bringing together unique and diverse perspectives is the root of creating durable, long lasting and adaptable design solutions.

With our roots in collaboration, we are committed to creating an inclusive work environment. Whether designing an individual client’s house or working with multiple stakeholders on a public art project, we value the unique perspectives offered by one another, our clients and communities. Experience has taught us that successful creative outcomes rely on collaborative problem solving, clear communication, shared goals. We love the world of making and sharing this world with others. We believe it’s a good idea to listen, since a good idea can come from anywhere. Through collaborating and building we realized ideas could be rapidly expanded and assumptions tested, a working process that has sustained us to today. We continue to believe in the physicality of making as integral to idea generation and the design process; where decisions made, become decisions felt. “No ideas but in things.”- William Carlos Williams. Whether designing or building, rhiza A+D’s practice is rooted in a respect for craft and a dedication to site sensitive place-making through the creation of cultural and climate sensitive objects and spaces.

Longhouse pool at dusk ARCHITECTURE Selected Projects Island Hill house Residential: New Home Island Hill House Addition to 80s single level house Residential: Addition 80's Single Level 15th century barn conversion Residential: Renovation 15th Century Barn Conversion ADU multi generational Residential: Accessory ADU Multi Generational ADU Winter Entrance Timberline Lodge Cultural Timberline Winter Entrance Therapy Offices Commercial: Health Mental Health Center open event areas and individual studios Commercial: Workspace NW Marine Artworks Restaurant & Mercado Commercial: Restaurant ChaChaCha & Mercado

BigPipePortal Selected Projects ARTWORK Soundshell Internatural Station , Public Artwork in Shoreline WA. 2020, by rhiza A+D Soundshell Internatural Station Public Art: Placemaking Camas Basket Public Art Camas Basket Public Art: Gateways Seeds of Orenco Seeds of Orenco Public Art: Placemaking Fishing for Gravity Fishing for Gravity Public Art:Transportation Diplothopter Sculpture & Installation:Gallery The Diplothopter

Earth pavilion public art by rhiza A+D located at the Oregon State Hospital DESIGN & BUILD Selected Projects Garden Pavilion Exterior Garden Pavilion Folded Awning Exterior Solid Metal Awning Treeleaf Pavilion Exterior Commercial Metal Pavilions Big Metal Planters powder coated steel can define an outdoor space Exterior Big Metal Planters Shard light fixture Interior & Products Shard Pendant Glass Fixtures Folding Tube Table Interior & Products Folding Tube Table

We are a collaboration forward design studio. We believe a great idea can come from anywhere, so we listen.

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Tel: 503. 281. 6829


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    COVID-19: Update

    While we continue to work remotely we are preparing to reopen our studio office and shop for client visits and meetings. We are continuing to follow CDC and the Governs guidelines for reopening. We value your business and are committed to continuing to provide services to keep your current and new projects moving forward. Please feel free to reach out to us if you have questions. We welcome new inquires through phone calls, this website and our Instagram.

    Please stay safe and look after your family, friends, and neighbors. Sincerely, the Team at rhiza A+D.