Upminster shift from farming to garden suburb. As part of the suburban growth of London in the 20th century, Upminster significantly expanded and increased in population, becoming part of Hornchurch Urban District in 1934, and has formed part of Greater London since 1965. The placename Upminster is first recorded in 1062 as "Upmynstre" and is recorded in the 1086 Domesday Book as "Upmunstra". It is formed from Old English "upp" and "mynster", meaning the large church on high ground. The high ground of St Laurence's parish church being in relation to the valley of the River Ingrebourne and the Upminster Bridge
London Underground S7 and S8 Stock be fully served by the S Stock, due to its existing D Stock being newer than other trains that the S Stock was ordered to replace, as well as its recent refurbishment. The first S7 Stock train entered passenger service on the line between Olympia and West Ham on 2 September 2013. On 6 February 2014, the S Stock started running between Wimbledon and Edgware Road. The S Stock started services to Ealing Broadway on 13 June 2014, and on 17 June saw the start of commercial service to Richmond. On 16 January 2015, the Stock began running to Upminster.