In February 1919, with the war over, the C&SLR submitted a new bill that included provisions for an extension of time for the tunnel enlargement works approved in the act of 1913. The resulting act was passed on 19 August 1919 as the "City and South London Railway Act, 1919". In 1920, under special wartime provisions, the LER was granted an extension of time to carry out the works for its own 1913 act. Although the permissions to carry out the works had been renewed, the Underground companies were not in a position to raise the funds needed to pay for the works. Construction costs had increased considerably during the war years and the returns produced by the companies could not cover the cost of repaying borrowed capital.