Where the local housing authority have approved an application for agrant, they shall pay the grant, subject to subsection (3) below and tosections 133 and 134 below.
The grant may be paid—
in whole after the completion of the eligible works, or
in part by instalments as the works progress and the balance aftercompletion of the works.
The payment of a grant, or part of a grant, is conditional upon—
the eligible works or the corresponding part of the works being executedto the satisfaction of the authority; and
the authority being provided with an acceptable invoice, demand or receiptfor payment for the works and any preliminary or ancillary services andcharges in respect of which the grant or part of the grant is to be paid.
For the purposes of subsection (3) above an invoice, demand or receipt isacceptable if it satisfies the authority and is not given by the applicant ora member of his family.
Where a grant is paid by instalments, the aggregate of the instalmentspaid before the completion of the eligible works shall not at any time exceednine-tenths of the amount of the grant.