Lemuel P. Grant Mansion, Antebellum mansion in Grant Park neighborhood, Atlanta, United States

The Lemuel P. Grant Mansion is a three-story Italianate building located in Atlanta, Georgia. The structure showcases buff-colored stucco walls, oversized windows, and multiple fireplaces throughout its interior.

The Lemuel P. Grant Mansion was built in 1856 as a three-story Italianate house with buff stucco walls two feet thick, nine fireplaces and a ballroom. During the Civil War it served as a Confederate hospital; Union troops spared it in 1864 after finding Masonic paraphernalia, having been ordered not to harm Masons' houses. Neglect and fires from the 1940s stripped it of its four porches and second story. The Atlanta Preservation Center bought it in December 2001 for $109,000, moved its headquarters there in February 2002, stabilized the walls in 2006 and bought an adjoining lot in 2007.

The Atlanta Preservation Center bought the house in December 2001 for $109,000, when it was slated for demolition to make way for two new homes, and moved its headquarters there in February 2002. The center has spent over $1 million on restoration as of 2023. Grant's name also lives on in Grant Park, the land for which he donated.

The mansion stands on St. Paul Avenue between Broyles and Grant streets in the Grant Park neighbourhood, and the Atlanta Preservation Center has had its headquarters there since February 2002. The center bought the house in December 2001 for $109,000 when it was slated for demolition, and restoration of the walls and grounds is ongoing, so access is arranged through the center rather than by walk-in.

Union troops spared the house in 1864 after finding Masonic paraphernalia inside, having been ordered not to harm the homes of Masons. The building had served as a Confederate hospital. Margaret Mitchell, author of Gone with the Wind, later took a keen interest in the house.