Any nonconforming use or structure existing at the time of the passage of this chapter may be continued upon the lot or in the building so occupied and any such structure may be restored or repaired in the event of partial destruction thereof.
Any nonconforming use of buildings or open land may be continued but:
A. 
Shall not be enlarged, altered, extended, reconstructed or placed on a different portion of the lot or parcel of land occupied by such use on the effective date of this chapter.
B. 
Shall not be moved to another location where such use would be nonconforming.
C. 
Shall not be changed to another nonconforming use without approval by the Board of Adjustment and then only to a use which is of the same or of a more restrictive nature.
D. 
Shall not be reestablished if such use has been discontinued for any reason for a period of one year.
A lot which complies with all provisions of the chapter except for lot size and which was a separate lot prior to the adoption of this chapter may have a building permit issued for the construction of a one-family house if side line and setback provisions of Article V are complied with.