In 1733, Margaret Fleetwood, heiress to the Rossall estate, married Roger Hesketh of North Meols and Tulketh Hall, bringing Rossall into the Hesketh family. The couple chose to live at Rossall and it is likely that Roger Hesketh built the hall that existed into the 20th century. Previous houses on the estate were said to have been eroded or swept away by the sea. A chart drawn for Hesketh in 1737 shows a ruined "Old Rossall" slightly north of Rossall Hall.