Where, immediately before the passing of this Act, an authority holds land for the purposes of Part III, the land shall on the passing of this Act be treated as follows.

Land held by the council of a county, district or London borough, the Common Council of the City of London, the Greater London Council or the Council of the Isles of Scilly shall be treated as if it had been acquired by the council concerned for planning purposes (within the meaning of section 133(1) of the 1971 Act).

Land held by a regional, general or district planning authority shall be treated as if it had been acquired by the authority concerned for planning purposes (within the meaning of section 122(1) of the Scottish Act of 1972).

Land held by a new town authority (that is, a development corporation as defined in section 2 of the M1New Towns Act 1965, or in section 2 of the M2New Towns (Scotland) Act 1968) shall be treated as if it had been acquired by the authority under that Act.

Land held by the Peak Park Joint Planning Board or the Lake District Special Planning Board shall be treated as if it had been acquired by the Board concerned under section 119 of this Act.