The lawful use of any building, structure or land existing at the time of the adoption of this ordinance may be continued although such use does not conform to the provisions thereof, provided however, the following conditions are met:

1.

Unsafe structures or buildings. Any structure or building or portion thereof declared unsafe may be restored to a safe condition.

2.

Construction approved prior to ordinance. Nothing herein shall require any change in plans, construction of designated use of a building or structure for which a building permit has been issued and the construction of which shall have been diligently carried on within six (6) months of the date of such permit.

3.

Alterations. A non-conforming building may be maintained and repairs and alterations may be made, except that in a building which is non-conforming as to use regulations, no structural alterations shall be made except those required by law including eminent domain proceedings. Repairs as plumbing or changing of partitions or other interior alterations are permitted.

4.

Extensions. Buildings or structures or uses of land which are non-conforming shall not be extended or enlarged.

5.

Nonconforming use of land. When a non-conforming use of land has changed ownership or has been discontinued for a period of ninety (90) days, its future use shall revert to the uses permitted in the zoning district in which said land is located.

6.

Abandonment. A non-conforming use of land or of a building which has been vacated or abandoned for ninety (90) days shall not thereafter be occupied by any non-conforming use.

7.

Destruction by fire or other act. Nothing in this ordinance shall be taken to prevent the restoration of a building destroyed to the extent of not more than seventy-five (75) percent of its assessed value by fire, explosion or other casualty, or act of God, or the public enemy, nor the continued occupancy or use of such building or part thereof which existed at the time of such partial destruction. Restoration must be started within ninety (90) days.