Ellenzweig Announces William Holt as New President

Bill Holt

BostonMichael Lauber, FAIA, announced that William Holt, Architect, LEED AP, will succeed him as Ellenzweig’s president. After serving as the firm’s chief executive since 2004, when he succeeded founder Harry Ellenzweig, Lauber is stepping away from the presidency to focus on the firm’s project work and client relations.

Holt most recently served as director of life sciences at the architectural firm Tsoi/Kobus & Associates; his past positions include principal and founder of Strategic Space; head of space planning and real estate/global facilities planning with Novartis Institutes for Biomedical Research; and senior director of design at Fidelity Investments Real Estate Company.


Holt has dedicated his 27-year career to planning laboratory and office environments for a variety of life sciences, medical, and corporate institutions.  He is particularly committed to planning and designing spaces that are efficient and functional, yet that lift the human spirit and stand the test of time—qualities that have long been central to Ellenzweig’s design philosophy.

“I look forward to continuing my collaborations with clients and colleagues on a full-time basis, confidently entrusting the leadership of the firm with a talented successor,” said Lauber.  “Bill is an architect who brings creativity, experience, enthusiasm, and energy to help guide Ellenzweig along the path of growth and discovery that began with the founding of the firm in 1965.”