(a) Existing Land or Buildings. Any use of land or buildings existing on the effective date of this Ordinance may be continued, even though such use does not conform to the provisions herein, so long as such building or use was legally existing prior to the establishment of this Ordinance. No nonconforming building, structure, or use shall be moved, extended, enlarged, reconstructed, or structurally altered, except as provided in this Ordinance.
(b) Construction Commenced. Any property purchased or acquired in good faith for any nonconforming use prior to the adoption of this Ordinance, upon which property the work of changing, remodeling or construction of such nonconforming use has been legally commenced at the time of adoption of this Ordinance, may be used for the nonconforming use for which such changing, remodeling or construction was undertaken, provided that such work is completed within two (2) years from the date of adoption of this Ordinance or amendment thereto making said use nonconforming.