Where, on November 20, 1975, a lawful use of land exists which would not be permitted by the regulations imposed by this chapter, and where such use involves no individual structure with a replacement cost exceeding $1,000, the use may be continued, so long as it remains otherwise lawful; provided that:
(a) No such non-conforming use shall be enlarged or increased, nor extended to occupy a greater area of land than was occupied on November 20, 1975, or on the effective date of any applicable amendment of this chapter.
(b) No such non-conforming use shall be moved, in whole or in part, to any portion of the lot or parcel other than that occupied by such use on November 20, 1975, or on the effective date of any applicable amendment of this chapter.
(c) If any such non-conforming use of land ceases for any reason for a period of more than 30 days, any subsequent use of such land shall conform to the regulations specified by this chapter for the district in which such land is located.
(d) No additional structure not conforming to the requirements of this chapter shall be erected in connection with such non-conforming use of land. (11-20-75, art. 5, 5.02)