A use or structure which does not conform to the regulations prescribed in the district in which such use or structure is located or was in existence and lawfully operating prior to the adoption of the Zoning Ordinance.

No nonconforming use or structure may be reconstructed, extended or enlarged beyond the lot or tract upon which such nonconforming use is located after the effective date of this ordinance without approval of the Board of Adjustments.

Repairs and normal maintenance may be made to a nonconforming building provided that no structural alterations or extension shall be made except those required by law or ordinance, unless the building is changed to a conforming use.

Any nonconforming use may be changed to a conforming use and once such change is made, the use shall not thereafter be changed back to a nonconforming use.

It is the declared purpose of this ordinance that nonconforming uses be eventually discontinued and the use of the premises be required to conform to the regulations prescribed herein having due regard for the investment in such nonconforming uses. The Board of Adjustments and Appeals may grant an exception to this provision only if the owner can show there was a clear intent not to abandon the use even though the use was discontinued for 90 days or more.

If a nonconforming structure or a structure occupied by a nonconforming use is destroyed by fire, act of God or other cause, it may not be rebuilt except to comply with the provisions of this ordinance. In the case of partial destruction of a nonconforming use not exceeding fifty (50) percent of its reasonable value, reconstruction may be permitted after a hearing and favorable action by the Board of Adjustments, but the size and function of the nonconforming use shall not be expanded.