It is currently owned by the Fisher Brothers, who converted it to an office building in conjunction with construction of the 45-story Park Avenue Plaza to its east.

[2] In 1939, CBS, which had its corporate headquarters around the corner at 485 Madison Avenue, bought the building at 49 East 52nd Street, to move its radio operations, except for the main network newsroom.

[1] With the advent of television, large radio studios that could accommodate audiences were no longer needed.

[4] Frank Sinatra, Barbra Streisand, Leonard Cohen, Laura Nyro,[5] Bob Dylan (in spring 1970 for part of his New Morning album),[6] Paul Simon, Paul McCartney and Mahavishnu Orchestra (Birds Of Fire) recorded music there.

In 1988 the building was leased to Sony, which had purchased CBS Records,[8] and a Duane Reade store opened on the ground level and second floor.