Senior Staff

JOHN TINMOUTH, AIA, LEED AP, PRINCIPAL
Originally a native of Toronto. John Tinmouth came to the US for his education, receiving an undergraduate degree in Computer Science from Yale University and a Master of Architecture degree from Columbia University. He is a registered architect in the state of New York, and a member of the American Institute of Architecture. He became LEED certified in 2009. Outside of the office. he is an avid fencer and amateur cook. Mr. Tinmouth has been with the firm since its inception and became a principal in 2007.

TOM CHANG, AIA, PRINCIPAL
Born in Canada and raised in Taiwan. Tom Chang received his undergraduate dual degrees in Design of the Environment and Design Theow and Structural Technology from the University of Pennsylvania and his Master of Architecture degree from Columbia University. Priorto settling down in New York, he has travelled extensively in Europe and Asia and worked in Japan and Taiwan. He is a Registered Architect in the State of New York and is a member of the American Institute of Architecture. Mr. Chang has been with the firm since its inception and became a principal in 2007.

MARGARET HELFAND, FOUNDER
Margaret Helfand has been recognized worldwide for her innovative approach to design of institutional buildings. interiors. college campuses and product design. Her work was honored in a monograph published in 1999 by Monacelli Press. She was elected to the College of Fellows by the American Institute of Architects in 1998, and she was a recipient of the 2002 Rome Prize in Architecture.

Before founding her firm in 1981 she was an associate with Marcel Breuer Associates in New York and worked with Archigram in London. She earned a Master of Architecture degree from University of California at Berkeley after studies at the College of Environmental Design at Berkeley and the Architectural Association in London.

Margaret Helfand was the 2001 President of the AIA New York Chapter and founder of the Center for Architecture in New Yorki She was a founder and initial Co-chair of New York New Visions. a coalition of design and planning organizations advising on the redevelopment of Lower Manhattan after 9-11.

Margaret passed away in June of 2007, leaving a legacy of timeless design and a model for her dedication of her architecture skills to both the profession and the public. The firm Tinmouth Chang is dedicated to continue her legacy of design and service.