It’s a rare occasion when a property as objectively glamorous as the House of Cassini—the Upper East Side atelier of legendary fashion designer Oleg Cassini—goes on the market. Even rarer is the recent $5 million price cut, making this historic estate $49.5 million for those seeking a truly opulent lifestyle.
PROJECT OVERVIEW
Location: 15 East 63rd Street, New York
Architect: John H. Duncan
Design: Oleg Cassini
Realty: Louise Beit, Sotheby’s International Realty
Listing: Sotheby’s International Realty
Photographer: N/A
Located at 15 East 63rd Street, this eight-story Gilded Age mansion is bound to captivate admirers of both architectural and fashion history. The limestone facade gives way to a meticulously preserved interior that reflects an era of grandeur. Built in 1901 by renowned architect John H. Duncan, the property boasts approximately 18,000 square feet, featuring seven bedrooms, eight full bathrooms, and four partial ones. It’s the kind of space that screams luxury at every turn.
One of the few remaining Upper East Side mansions from the Gilded Age still in pristine architectural condition, the listing is held by Louise Beit of Sotheby’s International Realty. However, the mansion is not just defined by its size or location—it holds deep cultural significance as the residence of Oleg Cassini, the man behind Jackie Kennedy’s iconic style. Fashion enthusiasts will be particularly taken by the atelier where Cassini crafted some of the most memorable outfits for America’s former First Lady.
Stepping inside, you’re greeted with rooms that transition from grand to grander: soaring ceilings, intricate crown moldings, and beautiful herringbone hardwood floors. The mansion features a remarkable 14 fireplaces, each with its own dramatic touch to offer. Every detail speaks of careful craftsmanship and a bygone era of elegance.
If you love the idea of quiet reflection, the wood-paneled library is the perfect retreat. Fitness lovers will appreciate the fully equipped gym, while the three terraces offer breathtaking views of the city and nearby Central Park. Whether it’s morning coffee or hosting a soirée, these outdoor spaces provide a balance of serenity and grandeur.
However, as much as this mansion represents peace and beauty, it’s also tied up in some legal drama. The sale is subject to court approval, which may explain why the property—despite its extraordinary features—has lingered on the market. The battle revolves around Cassini’s widow, Marianne, and her fight over the designer’s estate.
For those undeterred by legal formalities, this mansion offers the unique opportunity to own not just a home, but a piece of living history. From the glistening chandeliers to the breathtaking ceiling moldings, each room promises to transport you to another time. A mirror-topped mantel in one of the many sitting rooms caps off a residence filled with historical charm and artistic flair.
As the price sits just under $50 million, this is a residence for those seeking both modern luxury and historical legacy. The House of Cassini is more than a home—it’s a statement.
