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550 Madison Avenue

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550 Madison Avenue
AT&T Building
Sony Building


Structure in General

existing [under renovation]


commercial office


  • Structurally, the building employs tube frame in its framework, with the tubular columns tied with trusses at the top and bottom.
  • The building is the U.S. headquarters of Sony Corporation.
  • The entrance is a grand, glazed arch surmounted by porthole-shaped openings.
  • The tripartite division of the facade is emphasized by a large entrance and pedestrian arcade at the base, a tall shaft with regular windows, and a wide band of windows just below the building's crown.
  • The plaza never succeeded as a public space and was converted to an enclosed retail space when Sony purchased the building.
  • There is a Sony Shop of New Technology in the building's base.
  • One of the most noticeable skyscrapers in New York, with its unusual pediment topping a slablike shaft. The shape is often likened to a Chippendale highboy, designed by the master 18th century English cabinet-maker, Thomas Chippendale.
  • The building is clad in grayish-pink granite from the same quarry that supplied the facade facing for Grand Central Terminal.
  • A similar building named Edificio Simón Bolivar was built in 1992 in Santiago, Chile.
  • A statue from the roof of the previous AT&T headquarters at 195 Broadway, the seven-meter Spirit of Communication (or "Golden Boy") by Evelyn B. Longman, was removed from the entrance lobby after the transaction and moved to AT&T's New Jersey premises.
  • When the building was sold to Sony in 1992, AT&T moved its head offices to the AT&T Building at 32 6th Avenue.

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More Information


550-570 Madison Avenue
14-28 East 56th Street, 13-29 East 55th Street
550 Madison Avenue
New York City
New York

Technical Data

647.37 ft
647.37 ft
647.37 ft
200.00 ft
98.00 ft

Involved Companies

Mueser Rutledge Consulting Engineers

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Features & Amenities

  • One of the city's famous buildings
  • City landmark
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