The London Underground (East London Line Extension) Order 1997
This Order authorises London Underground Limited to–construct and maintain an extension to the existing East London Line railway from a point north of Whitechapel Station to a point west of Dalston Kingsland Station on the North London Line; andconstruct and maintain a train servicing facility south of Surrey Quays Station on the East London Line;together with such other works (of whatever nature) as may be necessary or expedient in connection therewith.