Buffer zones shall consist of a strip of land equal to:

The buffer zone shall be kept in its natural state where wooded. Where natural vegetation is sparse, the buffer zone shall be a continuous screen of plant material at least six feet in height and/or a solid or tightly woven fence may be required by the Planning Board, so as to provide a year-round visual screen. Said planting may be placed in suitable areas in the buffer area as shall be required by the Planning Board.

Except as provided in Subsection d, no structure, activity, parking of vehicles, access driveways, loading areas, outdoor storage nor any principal or accessory structures shall be permitted within the buffer zone.

Underground utility easements, access driveways from public streets, one unlighted direction sign per each direction of traffic per access drive and signs permitted by this chapter are permitted within the buffer zones.