Towering above the corner of 70th Street, Residence 7AB is a singularly rare offering-boasting an uninterrupted 58-foot linear frontage on Park Avenue, massive volumes throughout, and a level of scale, light, and luxury seldom found in today's market.

Perfectly renovated, this 3-bedroom, 3.5-bathroom residence features a 25-foot-wide corner great room with open exposures ov...