The regulations prescribed by this chapter shall not apply to farms where the acreage outside the borough limits exceeds the acreage within the borough limits except that any extensions of, or additions to any farm buildings, farm dwellings, or new buildings located within the borough limits shall require a building permit.

Any such extensions, additions or new buildings shall be located a minimum of 200 feet from the side lines of the lot and a minimum of 100 feet from the front line of the lot.