Gyde
Open prototypeProto
Back to all New York City places

New York City, New York / History

The Otto H. Kahn House

A Gilded Age masterpiece at the corner of Fifth Avenue and 91st Street, this four-story neo-Italian Renaissance mansion was once one of the largest private residences in the United States.

Open prototype Get directions
The Otto H. Kahn House
Ajay Suresh from New York, NY, USA, CC BY 2.0

What is the Otto H. Kahn House known for?

It is a four-story neo-Italian Renaissance mansion described by the New York City Landmarks Preservation Commission as the finest of its style in New York City. It was one of the largest private houses in both Manhattan and the United States, with a floor area of 50,316 square feet.

Can I tour the inside of the mansion?

No, the mansion is not open for regular public tours because it operates as a private school. However, the exterior façade and architectural details can be viewed from the public sidewalk at any time.

Where is it located?

The house is located at 1 East 91st Street at Fifth Avenue in the Carnegie Hill section of the Upper East Side of Manhattan, facing Central Park to the west.

Who built the house and when?

The mansion was built between 1913 and 1918 for financier, philanthropist, and arts patron Otto H. Kahn. It was designed by architect J. Armstrong Stenhouse in association with C. P. H. Gilbert.

Who owns or occupies the building now?

The Convent of the Sacred Heart has occupied the building since 1934, having purchased the mansion shortly after Otto Kahn's death.

What should I check before going?

Use Gyde for context, then check official sources for current hours, tickets, construction, and closures.

What to know

The Otto H. Kahn House is a monumental four-story mansion located at 1 East 91st Street, standing at the northeast corner of Fifth Avenue and 91st Street in the Carnegie Hill section of the Upper East Side. Designed by architects J. Armstrong Stenhouse and C. P. H. Gilbert, the residence was built between 1913 and 1918 for the financier, philanthropist, and arts patron Otto Hermann Kahn. The building was completed in 1918, just after the termination of World War I, as a town residence for Kahn and his family. This imposing residence is widely regarded as the finest Italian Renaissance-style mansion in New York City. Spanning a massive floor area of 50,316 square feet, it was one of the largest private houses in Manhattan and among the largest in the United States. The New York City Landmarks Preservation Commission designated the building as a New York City Landmark in 1974, recognizing its special historical and aesthetic value to the city's heritage. Since 1934, the mansion has been occupied by The Convent of the Sacred Heart, which purchased the property shortly after Otto Kahn's death. While the building now operates as a private school, its grand façade and architectural details can be admired from the public sidewalk at any time. Historically, Kahn used the home to host public concerts and exhibitions of his treasures, reflecting his role as a major patron of the arts.

Visitor tips

  • The mansion is not open for regular public tours as it operates as a private school.
  • View the architectural details of the façade from the public sidewalk.
  • Combine this stop with a walk through nearby Central Park, which the mansion faces to the west.

Nearby context

Located in the prestigious Carnegie Hill neighborhood of the Upper East Side, the Otto H. Kahn House stands as a testament to the Gilded Age's grandeur, facing Central Park to the west.

Sources

Evidence and links