Mark's association with Grimshaw began in 1997 with the practice’s first US project, the Donald Danforth Plant Science Center →. Mark helped form a permanent office for Grimshaw in New York, where he is now the Managing Partner. Among other projects, Mark was a key part of the design team for The Experimental Media and Performing Arts Center → (EMPAC) in Troy, New York, and led the Queens Museum of Art → in New York City and New York University master plan.

Mark’s work focuses on the application of environmental design technologies on building projects where energy, materials and resource consumption are key design drivers.

His architectural approach is focused on applying the highest level of available technology to improve the social and environmental effectiveness of buildings, a philosophy embodied in Grimshaw architecture.

Mark is a licensed architect as well as LEED certified. He is a frequent guest critic and lecturer at schools of Architecture and guest presenter at numerous sustainable design symposia.