(1)Subject to subsections (2) and (3) below the provisions of this Act authorising the carrying out of the works (“the works powers”) shall have effect notwithstanding—
(a)the provisions of the [1990 c. 9.] Planning (Listed Buildings and Conservation Areas) Act 1990; and
(b)the provisions of the enactments relating to historic buildings and ancient monuments;and section 42 of the [1976 c. 57.] Local Government (Miscellaneous Provisions) Act 1976 (certain local Acts, etc., to be subject to the planning enactments, etc., except as otherwise provided) shall not apply to the extent that it would make the works powers subject to those provisions.
(2)Nothing in subsection (1) above as it relates to paragraph (a) shall apply in relation to—
(i)works for the demolition of any relevant building other than one specified in Part I of Schedule 3 to this Act; or
(ii)works for the permanent alteration or extension of any relevant building, other than one specified in Part I or Part II of that Schedule, so as to affect its character as a building of special architectural or historic interest.
(3)Subsection (1) above as it relates to paragraph (a) shall only apply in relation to works for the permanent alteration or extension of a building specified in column (1) of Part II of Schedule 3 to this Act which affect its character as a building of special architectural or historic interest if the works are carried out for the purpose specified in relation to that building in column (2) of that Part.
(4)In this section “relevant building” means a building which was, on 1st September 1991, a listed building or in a conservation area; and expressions used in this section and in the [1990 c. 9.] Planning (Listed Buildings and Conservation Areas) Act 1990 have the same meaning in this section as in that Act.
(5)Section 16 (Listed building provisions, etc., not to apply to works) of the [1992 c. iii.] London Underground Act 1992 shall be amended as follows:—
(a)in subsection (1) at the beginning insert “Subject to subsections (1A) and (2) below”;
(b)change the proviso to subsection (1) into subsection (1A) and for “Provided that nothing in paragraph (a) above” substitute “Nothing in subsection (1) above as it relates to paragraph (a)”; and
(c)in subsection (2) for “Paragraph (a) of subsection (1) above” substitute “Subsection (1) above as it relates to paragraph (a)”.