Historic Preservation

David G. De Long

Professor Emeritus of Architecture


B.Arch., University of Kansas
M.Arch., University of Pennsylvania
Ph.D. in Architectural History, Columbia University

Visiting Critic in Architectural Design, Middle East Technical University, Ankara; Visiting Professor, University of Sydney; restoration architect, Harvard-Cornell Archaeological Expedition to Sardis; former Associate, John Carl Warnecke and Associates, New York City; former Chair, Program in Historic Preservation, Columbia University. Fulbright Fellow, 1967-68; first James Marston Fitch Resident in Historic Preservation, American Academy in Rome, 1997; Guggenheim Fellow, 1997-98.

Taught History/Theory I, American Architectural History, and Theories of Historic Preservation. Chair, Graduate Group in Historic Preservation, 1984-96.

Former and current affiliations include Editorial Board of the Architectural History Foundation. Chairman of the Board of Directors of the Preservation Alliance for Greater Philadelphia, Western Pennsylvania Conservancy Advisory Committee, and Board of Directors of the Frank Lloyd Wright Building Conservancy.


Books include Historic American Buildings (14 vols., 1977-80), Bruce Goff: Toward Absolute Architecture (1988), Louis I. Kahn: In the Realm of Architecture (1991), Frank Lloyd Wright: Designs for an American Landscape (1996), Frank Lloyd Wright and the Living City (1998), Out of the Ordinary: Robert Venturi, Denise Scott Brown and Associates (2001), Auldbrass: Frank Lloyd Wright's Southern Plantation (2003).

  • Auldbrass: Frank Lloyd Wright's Southern Plantation

  • Out of the Ordinary: Robert Venturi, Denise Scott Brown and Associates