35-Foot-Wide Mansion - approximately 14,300 Interior SF + 3,500 Exterior SF - 6 Beds - 11 Baths - Rooftop Oasis - Garden - Wellness Level A rare offering on the Upper East Side, 125 East 65th Street is a magnificent 35-foot-wide Neo-Federal mansion originally designed in 1904 by Charles A. Platt, the celebrated architect behind residences for the Roosevelts and Astors.

Positioned within the House at 15 Central Park West, this expansive duplex penthouse brings together scale, light, and direct Central Park views in a way that feels both elevated and livable. The building-designed by Robert A.M. Stern, with interiors by Lee F. Mindel of Shelton, Mindel & Associates-offers a refined architectural framework, with future plans in place by Lord Norman Foster.

Private In-Person & Virtual Appointments Available Inspired by West Chelsea’s historical architecture and rich heritage, The Cortland, located at 555 W 22nd Street, is striking a new presence on the Hudson waterfront. Hand-crafted and American-made, The Cortland represents a unique collaboration between two architectural icons, Robert A.M. Stern Architects and Olson Kundig.

Spanning an entire floor of Ralph Walker’s iconic masterpiece, this 6,738 sq. ft. residence offers breathtaking 360-degree skyline, harbor, andriver views. The penthouse boasts five spacious bedrooms, five-and-a-half luxurious baths, three cozy wood-burning fireplaces, and a sprawlingnorth-facing terrace ideal for entertaining and relaxation.

Currently a commercial property. Located just off Fifth Avenue on a block graced by some of the city’s most distinguished turn-of-the-century mansions, 2 East 82nd Street presents a phenomenal opportunity for a single-family townhouse conversion. This 25-foot-wide residence spans approximately 12,400 square feet across seven levels, offering both grand scale and architectural pedigree.

Uncompromising quality and serene vistas of Central Park and the Manhattan skyline abound in this full floor 4,322 square foot penthouse at Robert A.M. Stern’s lauded 520 Park Avenue. Meticulously renovated and conceptualized by the current owners, this 59th floor residence has been transformed into an exceptionally grand pied-a-terre using the finest of materials.

Meticulously designed by Studio Sofield to the standards of a private commission, full-floor Residence 17 spans 5,251 sq. ft. with 172 sq. ft. of outdoor space, offering Central Park views from the 40'x18' corner great room, adjacent library, eat-in kitchen, and primary bedroom suite.

Magnificent Full-Floor Residence on Fifth Avenue Commanding a prime position high above Central Park, this exceptional full-floor residence offers sweeping, unobstructed vistas of the Metropolitan Museum of Art, the Jacqueline Kennedy Onassis Reservoir, the dramatic Central Park West skyline, and expansive open southern views over the city.

Tower residence 56S is a gracious 4,982 square-foot, half floor home with, 5 bedrooms, 6.5 bathrooms and a spectacular private loggia overlooking Central Park and Midtown Manhattan. Walls of glass frame spectacular views of Central Park, The Hudson River, and the NYC skyline. This grand residence features ceiling heights up to 14'6 and exceptional finishes throughout.

Crowning 255 East 77th Street with an array of dramatic private terraces, this beautifully designed duplex penthouse is a seven-bedroom, six-and-a-half-bathroom residence that balances monumental scale with refined elegance.

Tower residence 56S is a gracious 4,982 square-foot, half floor home with, 5 bedrooms, 6.5 bathrooms and a spectacular private loggia overlooking Central Park and Midtown Manhattan. Walls of glass frame spectacular views of Central Park, The Hudson River, and the NYC skyline. This grand residence features ceiling heights up to 14’6” and exceptional finishes throughout.

Tower residence 56S is a gracious 4,982 square-foot, half floor home with, 5 bedrooms, 6.5 bathrooms and a spectacular private loggia overlooking Central Park and Midtown Manhattan. Walls of glass frame spectacular views of Central Park, The Hudson River, and the NYC skyline. This grand residence features ceiling heights up to 14'6 and exceptional finishes throughout.