The Architects Collaborative

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Clark Art Institute building, designed by The Architects' Collaborative in 1973

The Architects Collaborative (TAC) was an American architectural firm formed by eight architects that operated between (1945-1995) in Cambridge, Massachusetts. The founding members were Norman C. Fletcher (1917-2007), Jean B. Fletcher (1915-1965), John C. Harkness (1916-2016), Sarah P. Harkness (1914-2013), Robert S. McMillan (1916-2001), Louis A. McMillen (1916-1998), Benjamin C. Thompson (1918-2002), and Walter Gropius (1883-1969). TAC created many successful projects, and was well respected for its broad range of designs, being considered one of the most notable firms in post-war modernism.


Norman Fletcher, Louis McMillen, Robert McMillan, and Ben Thompson first laid the conceptual foundation for what became the Architects Collaborative while they were classmates at Yale University, where they discussed forming "the World Collaborative," which would be an ideal office combining painting, sculpture, and architecture.[1]

Upon graduation, Norman Fletcher worked with John Harkness during the war at Skidmore, Owings & Merrill in New York, and later, John Harkness worked with Jean Fletcher for Saarinen and Swanson in Bloomfield Hills, Michigan. Jean Fletcher and Sarah Harkness had both studied at the Cambridge School of Architecture and Landscape Architecture.[1]

This group of friends were committed to forming a collaborative practice. To help them navigate the professional world and lend notability to the firm, they sought to add a senior practitioner. John Harkness pitched the idea of joining the Architects' Collaborative to Walter Gropius, who had asked Harkness to teach a master's class at Harvard. Walter Gropius agreed and became the eighth member of the group.[1]

Design philosophy and organization[edit]

The idea of "collaboration", which was the basis of TAC. It was carried out in that an entire group of architects have their input on a project, rather than putting an emphasis on individualism. There would be a "partner-in-charge", who would meet with clients and have the final decision of what goes into the design. Originally, each of the eight partners would hold weekly meetings on a Thursday to discuss their projects and be open to design input and ideas. However, as the firm grew larger there were many more people on a team and it was more difficult to consolidate into one group. Therefore, many other "groups" of architects within the firm were formed and carried out the same original objective. The position of the firm's president would be rotated amongst the senior partners.


TAC's initial work consisted of residential projects, mainly single-family houses. The most notable design was Six Moon Hill in Lexington, Massachusetts, a community dwelling in which several of the houses were the residences of the founding partners, excluding Gropius. Another one of TAC's specialties in this period was school buildings, which included many elementary and secondary public schools throughout Massachusetts and New England. TAC also designed many buildings for universities, among which was the Harvard Graduate Center, a small campus of dormitories and a building devoted to student activities. TAC also designed and planned the entire campus for the University of Baghdad starting the late 1950s. The project was met with both financial and political difficulties over several years which hampered a timely completion. TAC's other work included many corporate, government, and recreational buildings in both the United States and internationally.

In its initial decades, TAC's architecture was mainly in the International Style, early examples of which had been created by Gropius and his colleagues at the Bauhaus and elsewhere. Starting in the 1970s, TAC's style largely shifted from modernism to postmodernism, which was generally coming into favor in the architectural field.

Later years and demise[edit]

As the firm's staff increased and the scope of the projects became more complex, and an office in Rome was opened in the 1960s, which oversaw projects primarily in Europe and the Middle East. This was followed by the opening of an office in San Francisco in 1985.

Gropius was a part of TAC until his death in 1969 at age 86. The group continued on, but the firm fell into financial problems in the 1980s. This was largely due to TAC being unable to pay expenses which they owed to various financial institutions and other corporations. Among other things, the firm had been losing money in unbuilt designs, especially in Middle East. TAC was bankrupt and closed in April 1995. In response, many archives and architectural libraries worked fast to retrieve TAC's drawings and records. The majority of these are now stored in the Rotch Library at the Massachusetts Institute of Technology.[2] While the innovative process the TAC architects believed so deeply was carried out successfully, it did not become the norm for architectural firms.


For the most part TAC functioned as a team rather than on an individual basis, which was considered a unique method of architectural practice, which reflected Gropius' philosophy of working collaboratively with others when he was a Bauhaus instructor in Germany prior to TAC.

Important works[edit]

See also[edit]


  1. ^ a b c Kubo, Michael (Summer 2013). "The Cambridge School".
  2. ^ Rotch Library's TAC Archive Page Archived 2013-07-03 at the Wayback Machine
  • "TAC: Principles Process & Product", Currie, Leonard J. and Currie, Virginia M., Process: Architecture, V 19 pp 40-45, October, 1980 ISBN 0-89860-045-6
  • "The Architects Collaborative 1945-1965"
  • "The Architects Collaborative Suspends Operations", Progressive Architecture, v76, June 1995.
  • "Thirty-five Years of TAC", Harkness, John C., Process: Architecture, v19, pp 11-15, October, 1980 ISBN 0-89860-045-6

External links[edit]