Aug. 22 will be the last night of service at Broad and Spruce Streets for Ruth's Chris steakhouse, as it's leaving its home of 27 years in the Atlantic Building for more spacious quarters at the Sonesta Hotel at 18th and Market Streets.

The deal - which will thrust one of the city's longest-running steakhouses from the Atlantic Building on the Avenue of the Arts into the belly of the city's corporate scene - caps months of negotiations.

Ruth's Chris will take the former Elephant & Castle space on the 18th Street side, with about 230 seats and three private-dining rooms.

Thursday was emotional for Marsha Brown, who calls the Philadelphia location "my first-born." She later opened branches in King of Prussia and on Long Island, as well as Marsha Brown's restaurant in New Hope. She told staff - many of whom have been with her for two decades - about the date of the changeover.