Exterior Designation: October 14, 1965
Interior Designation: December 22, 1981
The building has existed for 130 years in its original state, inside and out. The house is a unique document of its period; it shows with unrivaled authenticity how a prosperous merchant of the 1830’s lived. In addition, the building is a fine example of New York architecture of the late Federal period. The interiors are elaborately finished in the newly-introduced Greek Revival style. The important rooms in the house are unaltered and now appear exactly as they did when originally completed. It has been given national landmark status through its designation by the National Park Service of the U.S Department of the Interior. The house has functioned as the Merchant’s House Museum since 1936.