Alterations. A nonconforming building or structure shall not be enlarged or extended or have exterior alterations beyond the limits of the original building or structure, unless such enlargement, extension or alteration shall be in accordance with § 160-5, Area and Bulk Regulations, for the district in which the building or structure is located.

Reconstruction. A nonconforming building may be reconstructed to its original dimensions, subject to site plan review pursuant to § 160-7 of this chapter. The purpose of site plan review is so the Planning Board can reduce the level of nonconformance of the building. In no case shall the level of nonconformance be increased, nor does this section imply any modification of this § 160-14 as to discontinuance, removal, modification or extension of a nonconforming use.