an Entity references as follows:
Royal Crescent is a crescent-shaped terrace of houses on the seafront in Brighton, part of the English city of Brighton and Hove. Built in the late 18th and early 19th century as a speculative development on the open cliffs east of Brighton by a wealthy merchant, the 14 lodging houses formed the town's eastern boundary until about 1820. It was the seaside resort's first planned architectural composition, and the first built intentionally to face the sea. The variety of building materials used include black glazed mathematical tiles—a characteristic feature of Brighton's 18th-century architecture. English Heritage has listed the crescent at Grade II* for its architectural and historical importance. An adjacent five-storey building, formerly the Royal Crescent Hotel but now converted into fl