A non-conforming use of land existing lawfully at the time of the passage of this Chapter (September 21, 1964) may be continued but shall not be extended, expanded or enlarged.

A non-conforming use of a lot containing no permanent building designed for a non-conforming use shall not be continued beyond the period ending two (2) years from the adoption of this Chapter (September 21, 1964).

The lawful use of a building existing at the time of the passage of this Chapter (September 21, 1964) may be continued, although such use does not conform with the provision hereof, and such use may be extended throughout such portions of the building as are arranged or designed for such use, provided no structural alterations, except those required by law or ordinance, are made therein. If no structural alterations are made, a non-conforming use of a building may be changed to another non-conforming use of the same or more restricted classification. If such non-conforming building is removed, the future use of such premises shall be in conformity with the provisions of this Chapter.

When a non-conforming use has been discontinued for six (6) months or more it shall not be reestablished.

A non-conforming use if changed to a conforming use or more restricted, non-conforming use, may not thereafter be changed back to a less restricted use than that to which it was changed. If by amendment to this Chapter any property is hereafter transferred to a more restricted district by a change in the district boundaries, or the regulations and restrictions in any district are made more restrictive or of a higher classification, the provisions of this Chapter relating to the non-conforming use of buildings or premises existing at the time of the passage of this Chapter (September 21, 1964), shall apply to buildings or premises occupied or used at the time of the passage of such amendment.

Repairs and alterations may be made to a non-conforming building, provided that no structural alterations or extensions shall be made, except those required by law or ordinance unless the building is changed to a conforming use; provided that the Board, by special permit in the case of evident hardship, may grant an extension of a non-conforming use not exceeding twenty-five percent (25%) of the ground area of the building.