Brighton's seafront has been characterised since the mid-19th century by monumental domestic architecture in the Regency style—one of the great sequences of Regency and Early Victorian town planning in England. Stuccoed terraces and crescents stretch several miles along the coast, terminating in the east at the Kemp Town development consisting of Arundel Terrace, Chichester Terrace, Lewes Crescent and Sussex Square. Beyond this, the landscape changed significantly at Black Rock, the westernmost point at which the South Downs meet the English Channel. Brighton's eastern boundary (and until 1928, the boundary of the whole borough) was fixed here in 1606, and the only substantial development until the 20th century was a gasworks established by the Brighton Gas Light and Coke Company. Some terraced houses, inns and commercial buildings followed. Until the early 1930s, an old turnpike ran along the top of the cliffs to the village of Rottingdean. In around 1931 it was closed and rebuilt further inland, requiring the demolition of several small houses.