The Public/Private Condo

by Rita Robison, Assoc. Ed.; Civil Engineering—ASCE, New York, NY,

Serial Information: Civil Engineering—ASCE, 1986, Vol. 56, Issue 3, Pg. 62-63

Document Type: Feature article


A 20-story office building in Chicago was built on publicly owned land under a condominium arrangement that allowed a developer full ownership of air rights over and above the 100,000 sq ft needed by the Metropolitan Sanitary District. The architect designed it with separate lobbies, elevators and mechanical systems for the separate owners. Structurally, the building is concrete topped by a steel frame mechanical penthouse and skylights over atriums that extend down to the 18th level. Floors are two-way post-tensioned slabs.

Subject Headings: Public private partnership | Concrete structures | Steel structures | Concrete frames | Steel frames | Commercial buildings | Land use | Residential buildings | Chicago | Illinois | United States

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