No land, building or premises, or part thereof, shall hereafter be used and no building, or part thereof, or other structure shall be constructed, extended, enlarged, moved or altered except in conformity with these regulations. No lot shall have an area, width, or a front, side or rear yard less than that set forth in the applicable section hereof, except as otherwise specifically provided in these regulations. No building, buildings or structures shall occupy in the aggregate a greater percentage of lot area, nor be greater in height, than as set forth in the applicable section hereof, except as otherwise specifically provided in these regulations. Except as otherwise specifically provided by these regulations, any permitted building or permitted use may be located in that portion of the lot not contained in any required front, side or rear yard.