 Eventually the Great Northern Railway (purchasers of the EH&LR before its opening) bought out the W&ER and continued to develop proposals although nothing was built.In 1922, the Underground Electric Railways Company of London (forerunner of most of the London Underground) purchased the W&ER with the intention of using its land and right of way to continue the extension of the Charing Cross, Euston & Hampstead Railway (CCE&HR, now part of the Northern line) that it was then building north from Golders Green to Edgware.Various plans were made but no construction took place.