Grass Lawn, also known as the Milner House, was a two-story Antebellum home located in Gulfport, Harrison County, Mississippi.

Grass Lawn was constructed in 1836 as a summer home for Dr. Hiram A. Roberts, a Port Gibson surgeon and owner of sugarcane plantations in Louisiana.

Grass Lawn was unique in that it was of wood-pegged construction with timbers of hand-hewn longleaf pine and walls of bald cypress.

In the aftermath of the hurricane, government officials committed to construct a period-style replica of Grass Lawn to serve as a visible reminder of historic buildings on the Mississippi Gulf Coast.

The completed structure was dedicated on July 20, 2012, to be used for city functions, and rented out for weddings, receptions, and other events.