(3) (4) (5) (6) and that the disadvantages to the public interest of this deterrent to building would outweigh the dangers of high rents and insecurity of tenure. The minority report and the reservation oppose this view, and the minority report advocates control of new houses for a period of five years after the war. Local Authority Houses. Most of the houses built by local authorities were erected after the 2nd April, 1919, and so were not subject to control before the War. The 1939 Act provided that houses built by local authorities under their powers under the Housing Acts should be exempt the control of the Rent Restriction Acts.