A nonconforming use of land existing at the effective date of
this chapter (9-27-1965) may be continued; provided, however, that
no such nonconforming use of land shall be in any way expanded or
extended, either on the same or adjoining property. If such nonconforming
use of land or any portion thereof is discontinued for a continuous
period of one year or changed, any future use of such land shall be
in conformity with the provisions of this chapter.
The nonconforming use of land for storage purposes and for advertising
signs and billboards located within any R District shall be discontinued
within five years from the date of approval of this chapter and any
such uses of land which become nonconforming by reason of a subsequent
change in this chapter shall also be discontinued with five years
from the date of the change.