(1)The works for which an improvement grant may be given are—
(a)works required for the provision of a dwelling by the conversion of a house or other building, or
(b)works required for the improvement of a dwelling,
other than works falling entirely within section 474 (works for which intermediate grant may be given).
(2)The references in subsection (1) to works required for the provision or improvement of a dwelling include any works of repair or replacement needed, in the opinion of the local housing authority, for the purpose of enabling the dwelling concerned to attain the required standard referred to in section 468.