London Underground L Stock London Underground L Stock London Underground L Stock was a clerestory-roofed rail stock built for the District line in 1932 and subsequently absorbed into the London Underground Q Stock, being redesignated Q31 Stock. The L Stock trains were built to provide additional rolling stock for the eastward extension of the District Line from Barking to Upminster. Two new electrified tracks were added parallel to the existing steam-operated LMS lines, including several new stations such as Upminster Bridge. Forty-five cars were built by the Union Construction Company, eight were driving motor cars and the rest were trailers. The eight motor cars,
Hornchurch and Upminster (UK Parliament constituency) Census. The seat, like the London borough, is the only one in London that extends beyond the M25 motorway. The seat was the proposal of the Boundary Commission's Fifth Periodic Review of Westminster constituencies in 2008-9 and was after consultation accepted by Parliament. Hornchurch and Upminster is essentially an expansion of the old Upminster seat to include a chunk of the old Hornchurch seat – specifically Hornchurch itself. Most of the western wards of Hornchurch went to the new Dagenham and Rainham seat. The constituency of Hornchurch and Upminster is made up of eight electoral wards from the London Borough