AT&T Corporate Headquarters Building (later Sony Plaza, now 550 Madison Avenue) 
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Full Address: 550 Madison Avenue Manhattan, NY
Alternative Address: 550-570 Madison Avenue; 13-29 East 55th Street; 14-28 East 56th Street
Year Built: 1978-84
Year Designated: 2018
Year Published: 2018
Architect: Johnson/Burgee, in association with Simmons Architects
Key words: 1970s, 1980s, Philip Johnson, Johnson, John Burgee, Burgee, pediment, split pediment, broken pediment, Simmons Architects, Harry Simmons, granite, pinkish-gray, Stony Creek, Stony Creek granite, pinkish gray granite, granite cladding, flat arch, arch, vault, gable trim, postmodern, glass-clad, bronze, arcade, bays, Frank Briscoe, Frank Briscoe Company, William Crow Construction, Stanley Smith, lobby window, decorative coping, coping, columns, cornice, Sony, Sony Plaza, AT&T, Charles Brown, corporate, oculi, oculus, cantilevered, storefront, revolving door, flagpole, voussoirs, Olayan Group, decorative paving, paving,
Architectural Styles:

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