London Underground D78 Stock London Underground D78 Stock The London Underground D78 Stock, commonly referred to as D Stock, was a type of sub-surface rolling stock which operated on the District line of the London Underground, except on the Wimbledon to Edgware Road service. Following the withdrawal of the C Stock in June 2014, these were the oldest subsurface trains in service on the London Underground. The first units were withdrawn in January 2015 with the last withdrawn on 21 April 2017. The D stock was ordered in 1976 to replace the pre-war CO/CP Stock and post-war R Stock on the District line. Seventy-five
Upminster road terminating in the town. The M25 motorway is located about to the east of the town centre. Havering Council's urban strategy recognises that nearby Hornchurch is the main cultural hub of the borough with a large theatre and arts spaces, and Romford offers the largest regional concentration of entertainment facilities. Within Upminster is New Windmill Hall, a flexible entertainment space, built in 1968, which holds up to 300 people. Upminster forms part of the tourism strategy for the borough. It is the location of Upminster Windmill, one of the few remaining mills in Greater London and is Grade II*