[3] In 1949, he left Tishman Realty and formed his own construction company, Paul Tishman Inc. His company focused on urban renewal and the building of university, hospital, and government buildings.
[3] His firm was responsible for the construction of Washington Square Village (although the project was halted due after only two buildings were completed due to local opposition; it was eventually completed by New York University); the Student Art Center at Sarah Lawrence College in Yonkers, the Ravenswood Houses in Astoria, Queens, and Concord Village in Brooklyn.
[3] Tishman served as a director of the Urban League, the Legal Aid Society, the New York League for the Hard of Hearing, and was a member of the visiting committee of the primitive art department at the Metropolitan Museum of Art.
[3] Tishman predeceased his wife of 70 years, the former Ruth Worms (1905-1999); two daughters, Ellen Rosenthal and Jean Harrison, and six grandchildren and nine great-grandchildren.
[5][6] Allan Sherman parodied Tishman on his last Warner Brothers release (Togetherness, 1967) in the song "If I Were A Tishman" ("All day long I'd buildy-buildy build, if I were a building man...") to the tune of "If I Were a Rich Man" from Fiddler on the Roof.