28Requirements precedent to approval of application for improvement grant
(1)The requirements referred to in section 27(6) of this Act are as follows, that is to say—
(a)that, as respects dwellings to be provided or improved by means of the improvement works, the dwellings or (as the case may be) the dwellings as so improved will provide satisfactory housing accommodation for a period of not less than thirty years from the completion of the works;
(b)that all such dwellings as aforesaid will conform with such requirements with respect to their construction and physical condition and the provision of services and amenities as may be specified for the purposes of this section by the Secretary of State ;
(c)that the applicant is, in respect of every parcel of land on which improvement works are proposed to be carried out (other than land proposed to be sold or leased to him under section 145(4) of the principal Act), either the owner or the lessee under a lease of which the period remaining unexpired at the date of the application is not less than—
(i)the period for which the dwellings concerned will provide satisfactory housing accommodation, or
(ii)thirty years,
whichever is the shorter.
(2)If, in relation to all or any of the said dwellings, the local authority are of opinion that the period mentioned in paragraph (a) of subsection (1) of this section is likely to be less than thirty years, they may, notwithstanding that fact, approve the application if they are satisfied that the said period is likely to be more than ten years and if they consider it expedient in all the circumstances to do so.
(3)If, in relation to all or any of the said dwellings, the local authority are not satisfied that the dwellings or dwelling will conform with a particular requirement specified under paragraph (b) of subsection (1) of this section, they may, notwithstanding that fact, approve the application if they are satisfied that, in all the circumstances of the case, conformity with that requirement would not be practicable at a reasonable expense.