In 1837 the Hippodrome racecourse was laid out. The racecourse ran around the hill, and bystanders were expected to watch from the summit of the hill. However, the venture was not a success, in part due to a public right of way which traversed the course, and in part due to the heavy clay of the neighbourhood which caused it to become waterlogged. The Hippodrome closed in 1841, after which development resumed and houses were built on the site. The crescent-shaped roads that circumvent the hill, such as Blenheim Crescent, Elgin Crescent, Stanley Crescent, Cornwall Crescent and Landsdowne Crescent, were built over the circular racecourse tracks. At the summit of hill stands the elegant St John's church, built in 1845 in the early English style, and which formed the centrepiece of the Ladbroke Estate development.