Regulation 6 Conditions of grant
—Subject to the provisions of regulation 8 of these Regulations, these Regulations and the recorded conditions shall be observed in respect of the dwellinghouse–
(a)
where a grant has been made for erection or rebuilding, for a period of 20 years;
(b)
where a grant has been made for improvement, for a period of 5 years;
beginning with the day on which, in the opinion of the Secretary of State, the work is completed.