Written protest. In case of written protest (legal remonstrance) against any proposed change, revision, or amendment signed and acknowledged by thirty percent (30%) of the owners of real property within one thousand (1,000) feet of the parcel of land for which the change, revision, or amendment is proposed, or in cases where the land affected lies within one and one-half (1½) miles of the corporate limits of a municipality having in effect ordinances zoning property within the corporate limits of such municipality, made by resolution of the City Council or Board of Trustees thereof, and filed with the County Registrar, such change, revision, or amendment may not be passed except by five (5) of the seven (7) members of the County Council.