The London and North Western Railway (LNWR) were also keen to have a goods depot in the City, and agreed to help the NLR fund the new extension. The connecting line to Broad Street (via the Kingsland Viaduct) was authorised by the North London Railway Act of 22 July 1861. The work involved a extension from Kingsland down towards Broad Street, and required the demolition of numerous properties in Shoreditch and Haggerston. During construction of the terminus, a large burial ground was unearthed exposing human remains. This may have been a result of the plague, or burial pits from Bethlehem Hospital. The overall cost of the station and extension was £1.2m (£m in ).