Object Timeline

  • We acquired this object.

-0001

1902

  • Work on this object ended.

2017

2025

  • You found it!

Carnegie Mansion

The Carnegie Mansion was the New York home of Andrew and Louise Carnegie and their daughter Margaret, completed in 1902 on Manhattan’s Upper East Side. It is now home to Cooper Hewitt, Smithsonian Design Museum.

Learn more about the architectural history of the Carnegie Mansion, including floor plans and historical interiors.

Explore a timeline of the history of Cooper Hewitt, Smithsonian Design Museum, featuring the stories of the Hewitt sisters and the Cooper Union Museum for the Arts of Decoration, Andrew Carnegie and his Fifth Avenue Mansion, and the Smithsonian Institution.

This object was donated by Carnegie Corporation of New York. It is credited Gift of Carnegie Corporation.

There are restrictions for re-using this image. For more information, visit the Smithsonian’s Terms of Use page.

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If you would like to cite this object in a Wikipedia article please use the following template:

<ref name=CH>{{cite web |url=https://www-6.collection.cooperhewitt.org/objects/1108799575/ |title=Carnegie Mansion |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=1 April 2025 |publisher=Smithsonian Institution}}</ref>