BSB Design

Design that makes a difference is more than a tagline —
it’s our mission.

BSB Design’s Los Angeles office, formerly Withee Malcolm Architects, is a 40+ member team of designers spanning architecture, planning, and interiors. Our studio, one 12 BSB Design locations, offers clients commitment, creative energy and personal integrity.

BSB Design Los Angeles approaches planning, architecture and interior assignments with a rigorous desire to find the best possible solution, and delivering informed, responsive service. This approach has helped us build long-term client and partner relationships across urban infill housing, commercial, industrial and most recently food and hospitality-focused markets. Our projects span across the Western United States and beyond, as we work collaboratively with other BSB Design offices on the future of our neighborhoods, our cities, and our environment — where our design makes a difference.

Licensed Architect, California,

Bachelor of Architecture
SCI-ARC Southern California Institute of Architecture

Landscape Architecture
California State Polytechnic University, Pomona

Associates of Science Degree, Architecture/Construction Technology
Henry Ford College, Dearborn, MI

Henry Ford Honors Society

Dirk D. Thelen

Principal of Residential Architecture | Associate

Principal of Residential Architecture, Dirk Thelen supervises architectural design teams on a broad range of projects, including affordable, set-aside, and alternative-delivery housing. Through early training in construction technology and more than four decades of practical experience, he works fluently across client, collaborators, city planner and government agency lines.

Dirk has built a reputation as much for his congenial style as his inventive design solutions and their “buildability.” His projects express not only his thorough understanding of his clients’ requirements, but also his appreciation of contemporary architecture and the vernacular regional architecture of Southern and Northern California.

Director of Residential Architecture
Principal of Commercial Architecture
Director of Commercial Architecture
Director of Residential Architecture
Director of Production
Director of Interior Design – Los Angeles
Senior Project Manager
Consulting Principal