Welcome to Dumbarton House

A visit to Dumbarton House, built in 1799, offers guests a unique opportunity to view one of the finest examples of Federal period architecture in the U.S., along with its impressive furniture and decorative arts collections. They take away a clear idea of what life was like in the earliest days of our nation’s capital. In addition to being a historic house museum, Dumbarton House is also the headquarters of The National Society of The Colonial Dames of America.

The mission of Dumbarton House, the national headquarters of The National Society of The Colonial Dames of America (NSCDA), is to support the NSCDA Corporate Societies and their members; to maintain an historic museum property, which serves as a resource for the NSCDA nationally; and to contribute to the cultural life of the surrounding community.

Through the interpretation of its historic site and collections, the Dumbarton House Museum promotes the understanding of historic preservation and of the early history of our nation, so that the lives and ideals of early Americans inspire current and future generations.


February through December

Tuesday through Sunday,
10:00am to 3:00pm
(last museum entry is 2:45pm)

Self-guided tours are available year round. To arrange a docent-led tour, you may book online for our Saturday and Sunday guided tours at 10:30 am and 1:30 pm, or call 202-337-2288 for week day availability.

Groups of ten or more persons must schedule in advance (group discounts apply). For more information, please visit the Group and Specialty Tours page of our website.

Scheduled Closures 2017/18

Month of January
All Mondays (Year around)
New Year’s Day – January 1, 2018
Independence Day – July 4, 2018
Thanksgiving – November 22, 2018
Holiday – December 24, 2018
Holiday – December 25, 2018