22Possession of houses
If the Secretary of State certifies that possession of a house—
(a)which has been acquired for the purposes of this Act by a development corporation or local highway authority, and
(b)which is for the time being held by that corporation or authority for the purposes for which it was acquired,
is immediately required for those purposes, nothing in the [1976 c. 80.] Rent (Agriculture) Act 1976 or the [1977 c. 42.] Rent Act 1977 shall prevent that corporation or authority from obtaining possession of the house.