
Nestled less than a block from Central Park, this 123-year-old limestone Beaux Arts mansion is a stunning relic of the Gilded Age.
Designed by renowned architect John H. Duncan in 1901, the residence showcases an intricate limestone facade with arched French windows, a copper mansard roof, and delicate floral garlands.
Inside, ornate original details abound, including a marble staircase, sculptural motifs, intricate moldings, and wood paneling. The property spans approximately 18,000 square feet, featuring seven bedrooms, 12 full bathrooms, and four powder rooms. With eight levels, including two below ground, the home offers luxurious living spaces paired with soaring ceilings and extraordinary craftsmanship.
Grand Spaces and Exquisite Features
The mansion boasts 28 thoughtfully designed rooms, including a circular dining room with herringbone floors and a paneled library adorned with sculptural ceiling motifs.
Double-height arched windows bathe the interiors in natural light, complementing the home’s 14 fireplaces and three terraces.
A sitting room with a dramatic double-height ceiling opens to the floor above, adding to its grand ambiance.
Among the standout amenities are a gym, conservatory, and an elevator providing access to all levels.
A History of Distinguished Owners
Originally built for financier and philanthropist Elias Aisel, the property has also been home to fashion designer Oleg Cassini, known for styling icons like Jackie Kennedy.
Today, it is owned by Cassini’s widow, Marianne, and Peggy Nestor, his sister-in-law.
This residence represents one of the few surviving architectural gems of its era, with much of its Gilded Age splendor preserved.
Prime Location and Surroundings
Situated between Fifth and Madison Avenues, the home resides in one of New York’s most prestigious neighborhoods.
The surrounding area is steeped in history, with mansions designed by legendary architects and former residents including Woolworth and Bloomingdale.
Nearby, Madison Avenue offers world-class shopping destinations such as Hermes, Lalique, and Maison Goyard.
A Rare Opportunity
This magnificent townhouse stands as a testament to the opulence of a bygone era.
With unparalleled craftsmanship and proximity to Central Park, it combines timeless elegance with modern luxury, offering a once-in-a-lifetime chance to own a piece of history.
Explore More Photos Below
Exquisite wood paneling and intricate ceiling moldings adorn the grand living room, highlighted by a crystal chandelier and large arched windows that provide a charming view of the neighborhood.

The living room showcases opulent wood paneling, and a stunning marble fireplace, complemented by antique furniture and large windows for an inviting, luxurious ambiance.

Rich wood paneling, a crystal chandelier, and intricate wall carvings frame this elegant sitting room, offering a serene space adorned with historic portraits and comfortable seating.

Richly adorned mantelpiece showcases elegant figurines of soldiers alongside meticulously bound vintage books, reflecting a refined Gilded Age aesthetic.

Intricate ceiling carvings and a sparkling chandelier add to the luxurious atmosphere, showcasing the exquisite craftsmanship that defines this historic Beaux-Arts mansion.

Beautifully carved woodwork and a grand mirror enhance the mantelpiece, reflecting the luxury and elegance of the mansion’s interior design.

Elaborate wooden carving featuring a regal female face adorned with laurel leaves exudes the opulence of historic design.

The spacious living area with crystal chandelier carved wooden panels, and period furnishings radiates the grandeur of this Upper East Side Gilded Age mansion.

A grand staircase with ornate railings and richly carved paneling connects the mansion’s multiple levels, adding to the overall sense of historic elegance and grandeur.

The elegant sitting area features luxurious furnishings, including a green chaise lounge, surrounded by tall arched windows and intricate woodwork, creating a serene and opulent atmosphere.

Grand arched windows with detailed moldings line the walls, framing a beautifully appointed room with plush velvet seating and an ornate desk.

The magnificent staircase, with its intricate iron railings and sweeping design, elegantly connects the mansion’s multiple levels, highlighting its architectural grandeur.

Graceful curves and fine detailing of the staircase create a striking visual as it ascends through the mansion, highlighting the home’s sophisticated design and craftsmanship.

A stunning view from above captures the grand staircase’s elegant lines and intricate details, offering a glimpse into the mansion’s opulent design.

The spacious entrance hall features a grand spiral staircase, exquisite chandeliers, and opulent decor, setting a welcoming and luxurious tone for the home.

Intricate carvings on the balustrade showcase exceptional craftsmanship, adding a touch of artistic elegance to the mansion’s grand interior design.

The beautifully detailed sitting room features intricate ceiling carvings, arched mirrors, and plush seating, reflecting the mansion’s luxurious and historic charm.


Exquisite decorative molding and carvings above the doorways showcase the intricate craftsmanship that defines this elegant Gilded Age mansion.

Grand French doors lead from the intricately detailed sitting room into a spacious hall, offering a seamless blend of opulent design and historical elegance.

The elegant drawing room features a crystal chandelier, classic portraits, and plush velvet seating, creating a refined and sophisticated ambiance.


A gallery wall adorned with classic paintings and a marble-topped console table highlights the home’s rich cultural heritage.


The intimate dining room features exquisite wood paneling, a grand mirror, and luxurious decor, creating a cozy yet opulent setting for meals.

Detailed bronze decorations enhance the ornate elements of the home’s fixtures, showcasing the exquisite craftsmanship throughout the mansion.

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