Raw space, bring your architect. Perched directly above Central Park on one of Fifth Avenue's most established sections, this rare penthouse-level combination at 860 Fifth Avenue offers a type of opportunity that has become increasingly scarce in Manhattan: expansive interior volume, significant private outdoor space, uninterrupted park and skyline views from all four exposures, and the ability to shape a residence entirely around your own way of living. Spanning approximately 5,000 square feet internally, the home presents an exceptional architectural foundation rather than a finished vision dictated by someone else's taste. Walls of windows draw Central Park deep into the interiors, while the scale naturally supports expansive entertaining rooms, a substantial primary suite with terrace access, formal dining, multiple secondary bedrooms, a home office, and generous walls suited for art and collection. What makes the opportunity especially compelling is the permanence of the fundamentals. The residence could become a classically elegant Fifth Avenue home, a more contemporary architectural statement, or something quietly tailored between the two. Regardless of aesthetic direction, the defining qualities remain the same: light, scale, outdoor space, and direct positioning above Central Park, elements that cannot meaningfully be recreated today. Located between 67th and 68th Streets along the Upper East Side's Gold Coast, 860 Fifth Avenue remains one of Fifth Avenue's most respected white-glove cooperatives. Designed by noted architect Sylvan Bien, whose work includes The Carlyle, and 737 Park Avenue, the building embodies the quiet confidence and enduring quality associated with New York's most established residential addresses. Residents enjoy a highly private, owner-oriented environment with full white-glove service, attended elevators, concierge, fitness center, wine storage, landscaped courtyard garden, and on-site parking with preferred owner rates. Pieds-à-terre, co-purchasing, pets subject to approval, and secondary residence ownership are permitted, while the cooperative maintains an entirely owner-occupied structure with no renting or subletting allowed. 2% flip tax by incoming owner. Few opportunities along Central Park combine this degree of scale, outdoor space, architectural flexibility, and long-term permanence. More than a finished apartment, this is the chance to create a Fifth Avenue residence that feels deeply personal from the beginning and enduring for decades to come.