Except as provided herein, no land development may commence unless a Zoning Permit has been duly issued by the Zoning Administrator in conformance with these bylaws. Land development is defined as the division of a parcel into two or more parcels, the construction, reconstruction, conversion, structural alteration, relocation or enlargement of any building or other structure, or any mining, excavation or landfill, and any change in the use of any building or other structure, or land, or extension of use of land. No permit issued shall take effect until the time for appeal has passed or until the final adjudication of such appeal (24 V.S.A. 4449(a)(3).