Normal repairs and maintenance, interior improvements or remodeling, and exterior improvements or remodeling may be made to a nonconforming building or structure; provided, that no improvements or remodeling shall be made that increase the noncompliance or create an additional noncompliance of all or any part of such structure.

Unless otherwise provided, a nonconforming building or structure shall not be added to or enlarged in any manner unless such additions and enlargements are made to conform to all of the requirements of the zoning district in which such building or structure is located.

A nonconforming building or structure shall not be moved in whole or in part unless every portion of such building or structure is made to conform to all regulations of the zoning district in which it is to be located.

If a nonconforming building or structure is damaged or destroyed to an extent of less than 60 percent of its fair market value by fire, explosion, act of God or the public enemy, then restoration or new construction shall be permitted. If destruction is greater than 60 percent of its fair market value, such building or structure and its use, if repaired or replaced, shall conform to all regulations of the zoning district in which it is located, and it shall be treated as a new building.

A vacant, nonconforming building or structure lawfully constructed before the day of enactment of the ordinance from which this chapter is derived may be occupied by a use for which the building or structure was designed or intended, if so occupied within a period of 180 days after the effective date of the ordinance from which this chapter is derived. The use of a nonconforming building or structure lawfully constructed before the date of enactment of the ordinance from which this chapter is derived which becomes vacant after the effective date of said, may be reoccupied by the use for which the building or structure was designed or intended, if so occupied within a period of 180 days after the building or structure become vacant. All such buildings after 180 days of vacancy, shall be converted to a conforming use

Nonconforming buildings or structures may not be changed or expanded except as otherwise provided in this section.

The nonconforming use of a building or structure may not be changed to a use which does not conform to the requirements of the zoning district in which it is located.

A nonconforming use of a conforming building or structure shall not be extended or expanded into any other portion of such conforming building or structure, nor changed except to a conforming use.

Nonconforming use of land shall not be expanded, extended or changed to some other use not in compliance with the regulations of the zoning district in which the land is situated.

If a nonconforming use of land or any portion thereof, is voluntarily discontinued for a period of 180 days any future use of such land or portion thereof shall be in conformity with the regulations of the zoning district in which such land or portion thereof is located.

If a nonconforming use or portion thereof is voluntarily discontinued or changed to a conforming use, any future use of such land or building or structure upon the land shall conform to the regulations of the zoning district in which the land is located.

Any sign, billboard or poster panel which lawfully existed and was maintained at the time of the effective date of the ordinance from which this chapter is derived, may be continued, although such uses do not conform with the provision of this chapter; provided, however, that no structural alterations are made thereto.

The intent of the owner to discontinue the use is apparent; or

The characteristic equipment and furnishings of the nonconforming use have been removed from the premises and have not been replaced by similar equipment within 180 days; or

A nonconforming building or structure, or portion thereof, is or hereafter becomes vacant and remains unoccupied for a period of 180 days.