Paragraph 4
Land vested in the Greater London Council—
(a)
and held by it as a local authority under Part V of the Housing Act 1957; or
(b)
held in pursuance of functions conferred by Part II of the Housing Act 1969 or Part IV of the Housing Act 1974; or
(c)
acquired under sections 21(4) or (5) or 23(1) of the London Government Act 1963 and not appropriated for the purposes of any other function.