Where, at the time of adoption of this Ordinance, lawful uses of land exist which would not be permitted by the regulations imposed by this Ordinance, the uses may be continued so long as they remain otherwise lawful, subject to the following conditions:
(a) No such nonconforming uses shall be enlarged or increased, nor extended to occupy a greater area of land than was occupied at the effective date of adoption or amendment of this Ordinance.
(b) No such nonconforming uses shall be moved in whole or in part to any portion of the lot or parcel other than that occupied by such uses at the effective date of adoption or amendment of this Ordinance.
(c) If any such nonconforming uses of land are discontinued or abandoned for more than one (1) year (except when government action impedes access to the premises), any subsequent use of such land shall conform to the regulations specified by this Ordinance for the district in which such land is located.
(d) No additional structure not conforming to the requirements of this Ordinance shall be erected in connection with such nonconforming use of land.