The fundamental purpose of the conservation easement is to conserve, preserve and protect open space. In the case of the reserved open space, limited structures or other improvements may be permitted to be constructed on the property under terms of the easement. Any structures or other improvements permitted under the easement must be strictly limited, must not encroach on the character of the area, and shall be fully defined in a manner satisfactory to the Town and consistent with zoning and other regulations prior to Town Board acceptance of the easement donation.