Built in 1903, the James F.D. Lanier House at 123 East 35th Street is a stunning monument from New Yorks Gilded Age. One of the largest single-family homes in New York City, this Beaux-Arts style mansion sprawls over 11,638 sq.ft., with twelve bedrooms, nine plus bathrooms, and has been honored with a spot on the National Register of Historic Places. Having had only two owners, this home has maintained its pristine condition thanks to this careful stewardship and is a designated New York City landmark. Its placement on the market presents a once-in-a-lifetime opportunity for the most discerning buyer. Behind the brick and limestone faade, this 33 wide residence boasts grand salons with 14 ceiling heights and exquisite, original design touches including incredible millwork and oversized crystal chandeliers. Adorned with carved niches, classical statuary, and carved-stone basins, a 520 sq.ft.+, skylit gallery welcomes you into this incredible home, with a sophisticated receiving room with full bar and wood-burning fireplace sitting adjacent. Under an original 19th century crystal chandelier, a palatial dining room overlooks the garden and is serviced by a fully equipped, dual-level butlers pantry. Delivered by either a mahogany and wrought-iron staircase, or an oak-paneled elevator, you are ushered onto the parlor level. A grand landing with extraordinary herringbone wood flooring sits flanked by two enormous entertaining rooms. The living room on the south side overlooks 35th Street through three french windows and boasts perfectly crafted gilded wainscotting and a wood-burning fireplace. Handsome and sophisticated, the wood-paneled library displays the finest original millwork, features a huge fireplace, and accesses an adjacent wet bar and powder room. The oversized chefs kitchen sits on the garden level and is accessible to the first floor and parlor levels through a service staircase, to ensure discreet and smooth service while entertaining. With a full-suite of top-of-the-line appliances, including three refrigerators, multiple Bosch ovens and dishwashers, as well as a sizable walk-in pantry, the kitchen also opens to a chic breakfast room which opens onto the enclosed garden. On the third floor, an oversized bedroom suite features incredible details like a wood-burning fireplace, two walk-in closets, an attached dressing room, and a windowed ensuite with vaulted tile ceilings, original light fixtures and a huge shower with rainfall shower head. A similarly sized, bright with natural light, bedroom on the north side overlooks the garden and features three walk-in closets and a large bathroom with a fireplace and marble vanity. The fourth floor features the palatial primary suite bedroom suite with a huge cedar walk-in closet, and a windowed ensuite. Two bedrooms sit on the south side, both fireplaces and large walk-in closets, and share a bathroom with double-width shower. Two large linen closets round out the conveniences of this floor. A skylit staircase takes you to the fifth floor, where a four-bedroom staff suite with adjacent common space and ensuite bathroom sit. Two more guest bedrooms sit under three dormers and share a full bathroom on the south side. Another oversized walk-in closet sits on the top floor. Accessible through the staff suite, a huge storage space and a full bathroom sit on the sixth, and top, floor. The garden floor also features a fitness center with a sunken hot tub, cedar sauna, massage room, and cold plunge pool and full bathroom. Discreet, contemporary upgrades for convenience have been undertaken, like a high-tech security system, built-in speakers, brand new HVAC, an intercom system, a laundry room, and a temperature-controlled wine cellar. Designed by renowned architects Hoppin & Koen whose notable work includes the Franklin Delano Roosevelt Presidential Library in Hyde Park, NY, the James F.D. Lanier House is arguably their finest residential work. Fluted Ionic columns, ornate cornices and carved stonework, as well as a copper mansard roof round out the many exquisite flourishes that make this home so unique and extraordinary. The most discriminating and knowledgeable buyer will see the potential to proudly honor its legacy while stylishly putting their own stamp on it.