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.

Recognized by Architizer as one of the Top 8 Small Firms in the world, William / Kaven possesses a breadth of experience in multi-family housing, private residences, mixed-use commercial buildings, and retail environments. Our team is committed to developing and delivering innovative and aesthetically excellent design that responds sensitively to site, context, and client needs.

William / Kaven’s work has been featured in The Wall Street Journal, Architectural Digest, ArchDaily, Dwell, Hypebeast, and Wallpaper*, among other publications.