Tomas Rossant AIA


If architecture conditions human behavior, then we must be concerned with making environments to augment human performance, beyond terms of productivity and including terms of emotional well-being.

Featured Work


Tomas Rossant is a Design Partner at Ennead Architects. Together with his Design Partners, Tomas sets the design standards for the firm as well as charts its future direction. He received a Bachelor of Arts degree from Dartmouth College and a Master of Architecture from the Harvard University Graduate School of Design. Tomas is past President of the American Institute of Architects New York Chapter. He is an Honorary President and Board Member of the Fine Arts Federation of New York, a not-for-profit public art and architecture advocacy organization, and a member of the Board of Directors of Design Onscreen, a not-for-profit organization dedicated to funding and producing documentary films on design and design culture. He is Chairman of the Board of Directors of the Jose Limon Dance Foundation. Tomas has served as Visiting Juror at numerous colleges of architecture, including Columbia University, Harvard University, Pratt Institute and Rhode Island School of Design. He is a member of the American Institute of Architects.


Higher Education



    • Lenox Hill Hospital, Northwell Health Redevelopment, New York, NY,
    • Kansas State University, College of Architecture, Planning, and Design Study, Manhattan, KS,
    • 515 West 57th Street Residential Tower Study, New York, NY,
    • Henry Street Settlement, Residential Tower Study, New York, NY,
    • Harvard University, Music Department Precinct Planning Study, Cambridge, MA,
    • Harvard University, Departments of Anthropology, Psychology and Sociology, Programming and Planning Study, Cambridge, MA,
    • One Madison Avenue Residences Study, New York, NY,
    • 300 Lafayette Street Study New York, NY,
    • National Museum of American Jewish History Study, Philadelphia, PA,
    • Harvard Law School, Comprehensive Physical Plan, Cambridge, MA,
    • Corlears Hook Amphitheatre, Master Plan, New York, NY,

Hospitality & Residential



Performing Arts

    • American Ballet Theatre Planning Study, New York, NY,
    • New York Public Library for the Performing Arts Renovation, New York, NY,
    • Tanglewood, Seiji Ozawa Concert Hall, Lenox, MA (William Rawn Associates),
    • José Limón Dance Foundation, Test Fit and Program Analysis, New York, NY,


    • American Museum of Natural History, Hall of Ocean Life, New York, NY,
    • American Museum of Natural History, Starr Natural Sciences Building, New York, NY,
    • National Museum of American Jewish History, Philadelphia, PA (concept design),
    • Museum of the City of New York Expansion, New York, NY,



    • Harvard University, Graduate School of Design, Master of Architecture,
    • Dartmouth College, Bachelor of Arts,

Professional Experience

    • Ennead Architects, 1994-present
    • William Rawn Associates, 1992-1994

Professional Affiliations

    • American Institute of Architects, New York Chapter, 2015 President
    • Design Colloquium, Past Advisory Board Member
    • Design Onscreen, Founding Board Member
    • Fine Arts Federation of New York, Past President
    • José Limón Dance Foundation, Chairman of the Board of Directors
    • Municipal Art Society,
    • American Institute of Architects,


Arizona, Colorado, Georgia, Kansas, Massachusetts, Nevada, New York, North Carolina, Rhode Island, Texas, Washington, NCARB