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J. Timothy McCarthy


J. Timothy (Tim) McCarthy II, a dual US and UK national, is the Managing Principal of global design firm, Hart Howerton. He is a registered architect, a member of the American Institute of Architects, and a LEED Accredited Professional. Tim was educated at the University of Pennsylvania (M.Arch.) and the University of Notre Dame (B.Arch.) and subsequently worked with Dr. Demetri Porphyios and John Simpson, C.V.O.


Tim is an owner of Hart Howerton, a group of planners, architects, landscape architects, and interior designers headquartered in New York and San Francisco with a network across the globe. Hart Howerton’s practice is Designing Complete Environments – exceptional buildings, communities and places – in special situations, where a unique historic or natural environment requires an especially thoughtful and innovative solution.

Since 1967, Hart Howerton’s interdisciplinary approach has made its unique focus the creation of buildings and places that embody the spirit of tradition, including adherence to the values that serve human society well. “Although the term ‘classicism’ is used to describe specific, well-defined, codified ‘styles,’” Robert Lamb Hart, the firm’s founder and chairman emeritus, describes it as “a broader, refined language of humanism, one that has been eloquently spelled out – and repeatedly refreshed – in words and structures over millennia.”

Tim is also committed to understanding how conditions in the built environment may drive health and wellness-based design strategies. He continues to lead the firm’s research collaboration with the University of Virginia’s Center for Design & Health and he is an active contributor to the Urban Land Institute’s (U.L.I.) Building Healthy Places Initiative.

Before joining Hart Howerton, Tim’s work included 68 Vincent Square, a 70-apartment redevelopment in London’s Westminster; winning entries for design competitions at Lady Margaret Hall, Oxford, and Peterhouse College, Cambridge; institutional work for Princeton University’s Whitman College; and convention centers & large-scale sports venues across the American Midwest.

Tim is an active member of ULI’s Global Exchange Council. He has served as a guest critic at Kent State University’s architecture program in Florence, Italy; worked as a course aide at the University of Pennsylvania; and as a teaching assistant in the design studios of the University of Notre Dame. His work has been published & exhibited internationally.

Further Information

Tim McCarthy, AIA
Hart Howerton
10 East 40th Street
39th Floor
New York, New York 10016
United States of America
Tel. +1 (212) 683 5631
Fax. +1 (212) 481 3768
Twitter: @jtm_II
Twitter: @HartHowerton

1. Half Moon, Montego Bay, Jamaica
2. Elea Estate, Paphos, Cyprus
3. Private Beach Club, Hobe Sound, Florida
4. Private Beach Club, Hobe Sound, Florida
5. Garden Wing, The Cloister, Sea Island, Georgia
6. Garden Wing, The Cloister, Sea Island, Georgia
7. Torre Ognina, Siracusa, Sicily, Italy
8. i Villini di Roma, Rome, Italy
9. 68 Vincent Square, Westminster, London, UK: designed while at John Simpson and Partners, in collaboration with Alexander Stoddart
10. Whitman College, Princeton University, Princeton, New Jersey: designed while at Porphyrios Associates

PHOTO MOVED IN ADVANCE AND NOT FOR USE - ONLINE OR IN PRINT - BEFORE APRIL 3, 2016. -- The Cedar Bar at Half Moon resort, Montego Bay, on the northwest coast of Jamaica, March 19, 2016. Queen Elizabeth II has stayed at Half Moon, and Prince Philip, and the Prince of Wales, and John and Jackie Kennedy, and countless movie stars and celebrities. (Robert Rausch/The New York Times) 2_Elea Estate_Paphos_Cyprus Jupiter Island Club, Location: Hobe Sound FL, Architect: Hart Howerton Architects Jupiter Island Club, Location: Hobe Sound FL, Architect: Hart Howerton Architects Cloister at Sea Island, Location: Sea Island GA, Architect: Hart Howerton Architects 6_The Cloister Garden Wing_Sea Island_Georgia 7_Torre Ognina, Siracusa, Sicily, Italy 8_i Villini di Roma_Rome_Italy 9_68 Vincent Square_Westminster_London_UK 10_Whitman College_Princeton University_Princeton_New Jersey