William / Kaven Architecture is a multidisciplinary design studio based in Portland, Oregon, working in architecture and interiors. The studio was officially formed by brothers Daniel Kaven and Trevor William Lewis in 2004, continuing a lifetime of collaboration that began as children in their home state of New Mexico. Collectively, the brothers have amassed a significant portfolio in their design careers that includes award-winning residences, energy-efficient high-rise buildings, mixed-use buildings, and environments for corporate clients such as Nike, Converse, Microsoft, and NAU.

William / Kaven Architecture is committed to developing and delivering innovative, inspiring and energy-efficient projects that constantly push the envelope. We take an exploratory and creativity-driven approach to every phase of design, prioritizing not only an aesthetically excellent end result, but also an informed, open and responsive process.





Bachelor of Architecture; University of Oregon

Interchange, 2017 AIA Portland Merit Award

Behind the Fence: A Ten-Thousand-Foot
Perspective of the New Apple HQ

Op-Ed: A Redevelopment Opportunity
Too Big to Think Small
(DJC Oregon)

Daniel Kaven is an American artist working in architecture, painting, film, and photography. He is a co-founding partner at the architecture and design studio William / Kaven and is widely known for architectural interventions that defy cultural norms and the integration of painting and film into the design of his buildings. Kaven’s work has been published by such outlets as The Wall Street Journal, Dwell, and The Architect’s Newspaper.

In 2015, Daniel formed Kaven + Co. to facilitate visionary in-house projects. Since its inception, Kaven + Co. has originated well over $100 million in development. Most notably under development, in partnership with Guardian Real Estate Services, is Block 33, a 400,000 SF mixed-use tower in downtown Portland, Oregon, which features a public market, office, hotel and apartments.

Recently, Kaven publicly proposed a pair of 1000-foot skyscrapers interlinked by a botanical garden 680 feet in the air that would anchor a $3 billion redevelopment of a downtown property owned by the City of Portland. Kaven’s proposal also included a new underground bullet train hub that would interlink Portland to Seattle and Los Angeles. Dubbed the “Twin Towers of Portland” by the press, the buildings, which would have been among the tallest in America, gained widespread international acclaim for their innovative design and bold sociological program.

Kaven is additionally a vocal proponent for urbanism and the innovation of ecologically sensitive architecture. This year, Kaven will publish his first book, Architecture of Normal, which studies the evolution of architecture in the American West as advanced by transportation technology.



Bachelor of Architecture, Cum Laude; University of Oregon

Berkeley Prize Competition, Honorable Mention
Lyle Bartholomew Architecture Award
Senator Mark O. Hatfield Architectural Award
2017 AIA Portland Merit Award (Interchange)

Trevor William Lewis builds upon years of experience within internationally recognized architecture firms, where his most recent focus has been energy efficient high-rise and cultural buildings. Trevor endeavors for modern, conceptually-driven design solutions, and is always looking beyond traditional practices to sensibly manage energy and resources, within the paradigm of high design. He welcomes any design challenge, and is always considering detail, material, and craft at the finest scale; while responding to culture and context at the broadest range.  

Notable projects in conjunction with other firms include the newly completed Bend Cancer Center (2014 IIDA Jurors Choice Award, 2014 IIDA Healthcare Award); the 22-story 12W mixed-use building in downtown Portland (2010 AIA Built Merit Award); a Community Center and Library for the the Chinese Municipality of Xiamen, as well as the future expansion of the Portland Art Museum.  Over the past 10 years, Trevor has associated with the design of projects for many leading companies and institutions including Microsoft, Nike, Converse, NAU, Caterpillar, the Judicial Branch of California, St. Charles Health System, University of North Carolina, and the University of Oregon.

Trevor is a LEED Accredited Professional, and is a Registered Architect in Oregon, Washington, Michigan, Texas and New York, and is certified by the National Council of Architectural Registration Boards.