Hamilton Grange was built in 1802 as the country house of Alexander and Elizabeth Hamilton in upper Manhattan, then far from the dense city below. Hamilton named the estate after his family's ancestral home in Scotland. The Federal-style building provided space for family life, entertaining, reading, and work as Hamilton's formal national offices receded. He had been an aide to Washington, a leading advocate of the Constitution, and the first Treasury secretary, but this house belongs especially to the final years of his life.

The Hamiltons moved here with their children and lived amid gardens, trees, and a landscape that looked very different from today's Harlem. Hamilton continued writing and political argument while also attending to domestic and financial concerns. His death after the 1804 duel with Aaron Burr left Elizabeth to manage the family's affairs and memory. The building was occupied for only a short period by Alexander, yet its later preservation reflects the growing public interest in him and in the household he shared with Elizabeth.

As Manhattan developed, streets and buildings crowded the once-rural property. The house was moved in 1889 to a site on Convent Avenue, where it served religious and community purposes and gradually became hemmed in by larger structures. Preservation advocates recognized that its original exterior setting and important architectural features were difficult to understand there. Federal stewardship eventually made it a National Memorial, but relocation remained a major question for conserving the building and presenting its history.

In 2008 the National Park Service moved the house again, this time into St. Nicholas Park. Restoration work recovered features of its early appearance and created a more open setting, though this is not Hamilton's original estate ground. Exhibits and furnished rooms explain both the family period and the long history of moving, altering, and saving the house. Physical fabric from 1802 survives alongside restoration materials and modern systems needed for public access and building care.

Today visitors enter free exhibits on the lower level and can join ranger-led tours of the historic rooms, which have limited capacity. The house invites questions about Hamilton's public reputation and the less visible household labor and family relationships that supported his life. Its changing urban surroundings are part of the story: the Grange's two moves show how an eighteenth-century political figure's home was kept through nineteenth- and twentieth-century development, then deliberately placed in a setting designed for interpretation. The surviving house therefore records both family life and preservation decisions.