YAVAPAI COUNTY PLANNING AND ZONING ORDINANCE Page 7 conforming. Expansion of a non-conforming business use, other than within an existing building, requires compliance with the District requirements for yards, spacing, percent of lot coverage and all other such regulations. Additional parking area necessitated by such expansion shall not count against the one hundred percent (100%) expansion allowance. Where such expansion is an open-land use a solid masonry wall (or other wall, fence, or hedge as may be approved by the County Adjustment Board) must be installed as protective sight screening between such expanded use and any Residential Zoned lot within two hundred feet (200’). F. MIXED USES: Non-conforming and conforming uses and structures may be included on the same lot within limits of the District regulations for conforming uses and structures. In conformity with the Purpose and Effect of this Ordinance USE DISTRICTS and DENSITY DISTRICTS are hereby established in order to classify, regulate, restrict and separate: uses of land and structures; lot dimensions and areas; yard widths and depths, percent of lot coverage and open spaces; density formulas, height and bulk of structures, etc. These Districts are designed to be used in combinations and as such are hereby referred to as a ZONING DISTRICT. Any reference to a "Use" shall be deemed to include "principal and accessory uses and structures". Any map officially adopted delineating the locations and boundaries of the various "Use" and "Density" Districts within any portion of the unincorporated County area of jurisdiction, together with subsequent supplementary maps, shall be known collectively as the ZONING MAP for the County of Yavapai, Arizona and becomes an official record, as part of this Planning and Zoning Ordinance as if the matters and information set forth by said map were fully described in the Ordinance. Where a Use District has been adopted but not combined with a specific Density District, then the provisions of Density District 2A (Section 516) shall govern. Until such a time as an official Zoning Map is adopted, all of the unincorporated portion of Yavapai County is hereby deemed to be zoned RCU (Section 413) the same as though such zone were shown on an official map. A. DISTRICT BOUNDARY DETERMINATION: The District boundaries on the map are intended to follow lot lines, subdivision lines, section lines or centerlines of streets, alleys, or other rights- of-way (or extensions thereof) as they existed at the time of the enactment of the Map, except where referenced by dimensions thereon. Uncertainty of location of a District boundary shall be determined by the County Adjustment Board unless same can be resolved to the satisfaction of the Development Services Director and persons of interest by using the scale of the map. Where such boundary scales to within twenty-five feet (25’) of a common division line or a right-of- way, then it shall be deemed as following such division line or the center of the right-of-way, as the case may be. B. ABANDONED RIGHTS-OF-WAY: Where a public street or alley or other right-of-way is officially abandoned, the abutting District boundaries shall automatically extend to the centerline thereof. SECTION 203 ESTABLISHMENT OF DISTRICTS SECTION 204 ZONING MAP