This is my favorite skyscraper in Manhattan. Norman Foster did an outstanding job juxtapositioning an Art Deco limestone existing building with it’s soaring geometric tower without compromising the stylistic integrity of either. He did not make the new look old or the old look irrelevant but made each a compliment to the either. They share rigid geometry expressed at different scales and with different materials appropriate to their respective roles. The base is more intricate with Deco details to be appreciated by the pedestrian while the tower shimmers elegantly in the skyline with its large scaled white diamonds. 

Now, without further adieu I’ve gathered & edited the Hearst Tower’s BLDG Basics. For further detail feel free to visit the SOURCES:

BLDG BASICS

LOCATION
57th St & 8th Ave, Manhattan, NY
 
COMPLETED
1928 [base]
2006 [tower]
 
ARCHITECT[s]
Joseph Urban [base]
Lord Norman Foster [tower]
 
“The Hearst tower expresses its own time with distinction, yet respects and strengthens the existing six-story historical structure,” said Lord Foster. “The tower is lifted clear of its historic base, linked on the outside only by columns and glazing, which are set back from the edges of the site. The transparent connection floods the spaces below with natural light and encourages the impression of the new floating above the old.” [source] 
 
PROGRAM world headquarters of Hearst Corp.
commercial officepublic lobby & cafe
 
ELEMENTS
6 story cast stone facade base
80% recycled structural steel diagrid frame
glass curtain wall
 
SIZE
597ft / 46 floors / 861,100 sq ft
 
TYPE
Highrise

STYLE
art deco [base]
structural expressionism [tower]

DISTINGUISHING FEATURES
1st LEED Gold office building in NY
rainwater collection
natural light & ventilation
connected to the Columbus Circle subway station


SOURCES
[wikipedia] [archinomy] [constructalia] [vip in nyc] [hearst corporation] [emporis] [blogger-index] [arcspace]