The Transport for London (Woodside Park Substation) Order 2005
Section 163 of the Greater London Authority Act 1999 prohibits Transport for London from disposing of any freehold interest in operational land without the consent of the Secretary of State. Under section 164 of that Act, Transport for London is required to ensure that none of its subsidiaries does anything which Transport for London has no power to do (including anything which Transport for London has no power to do because the consent of the Secretary of State has not been obtained).