Power to prevent or demolish building in contravention of sections 30 and 31

Power to prevent or demolish building in contravention of sections 30 and 31. If any person without the permission of the trust erects, re-erects, adds to or alters any buildings so as to make the same project beyond a street alignment or building line prescribed by the trust or erects, re-erects, adds to or alters any building in contravention of sections 30 or 31 the chairman of the trust may, by a written notice, - (a) direct that the building, alteration or addition be stopped, and (b) require such building, alteration or addition to be altered or demolished as he may deem necessary.