6 E 69th St, New York, NY 10021

Twenty-five feet wide on one of the most protected residential blocks on the Upper East Side, 6 East 69th Street is an architectural masterwork spanning two distinct eras. Originally completed in 1888 by John H. Duncan—the architect behind Grant’s Tomb—for banker George J. McGourkey, the mansion was meticulously reimagined in 1936 by George B. Post Jr. Refaced in variegated Flemish-bond brick with limestone bandcourses, the home was reconfigured with a garden-level entrance and a classic elevator servicing every level. The result pairs a grand Gilded Age volume with modern circulation and light. The Residence Scale & Proportion: Approximately 12,000 square feet across multiple levels, delivering the coveted 25-foot width that allows for full-breadth grand entertaining rooms, soaring ceiling heights, and expansive window proportions impossible to replicate today. Prime Location: Situated half a block from Central Park between Fifth and Madison Avenues, steps from The Frick Collection, premier Madison Avenue galleries, and world-class dining. Unprecedented Value: Offered at $25,000,000 (~$2,080/SF). In a submarket where comparable trophy townhouses routinely trade between $2,970 and $4,330 per square foot, this represents an unmatched acquisition opportunity for a 10,000+ square foot mansion off Fifth Avenue. The X Change Place Opportunity 6 East 69th Street also marks the premier asset introduced through NextGen’s exclusive partnership with X Change Place—unlocking innovative, shared-equity ownership structures for legacy real estate. Complete details on fractional ownership and private placement are available upon request. Interior photographs are virtually staged to illustrate potential design concepts. Furnishings and decor do not convey and do not represent the current interior condition. Shown exclusively by private appointment. Exclusively represented by Jonathan Normolle, NextGen by Keller Williams.