Gloucester Terrace is an 1850s development.
Housing spread in the 1840s. Where the Paddington Estate straddled the Westbourne, roads were laid out, with bridges over the railway to link them with Harrow Road.
Holy Trinity church was finished in 1846. Orsett Terrace, Gloucester Crescent (later the northernmost part of Gloucester Terrace), and Porchester Square had been planned by 1851.
Most of the area between Bishop’s Road and the railway had been filled by 1855.
