s 158 Recovery of possession of controlled houses
(1) Nothing in the Rent Acts shall prevent possession being obtained of any house possession of which is required for the purpose of enabling a local authority to exercise their powers under any enactment relating to housing. (2) Where a local authority, for the purpose of exercising their powers under any enactment relating to housing, require possession of any building or any part of a building of which they are the owners, then, whatever may be the value or rent of the building or part of a building, they may obtain possession thereof under the Small Tenements Recovery Act, 1838, as in the cases therein provided for, at any time after the tenancy of the occupier has expired, or has been determined.