(1)Regulations shall be made by the appropriate Minister—
(a)for securing that, where an improvement grant has been made in respect of cost of work done for the erection, improvement or reconditioning of a cottage, conditions with respect to the occupation and maintenance thereof shall apply to the cottage for such period from the date on which it first becomes fit for occupation after the completion of the work (not being longer than twenty years) as may be specified in the regulations, including (without prejudice to the generality of this subsection) a condition prohibiting the occupation of the cottage otherwise than by the owner or a tenant thereof ; and
(b)in the event of a breach of any of the conditions for the recovery by the appropriate Minister from the owner of the cottage of sums paid (whether before or after the breach) on account of the grant, together with interest , thereon at such rate as may be specified in the regulations and for withholding any sums which, apart from the breach, would be payable to him.
(2)Regulations under the preceding subsection shall provide for the conditions thereby applied to a cottage ceasing to apply on payment to the appropriate Minister by such person as may be specified in the regulations of such amount as may be so specified, and may contain such incidental and supplementary provisions as appear to the appropriate Minister to be requisite or expedient for the purposes thereof, and in this section the expressions " owner " and " tenant " mean, respectively, owner and tenant as defined by the regulations.