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(A) Establishment. The location and boundaries of the zoning districts established by this zoning ordinance are shown on a geographic coverage layer entitled "zoning" that is maintained as part of the county's geographic information system (GIS) under the direction of the Zoning Administrator. This "zoning" geographic coverage layer constitutes Will County's official zoning map. The official zoning map—together with all notations, references, data and other information shown on the map—is adopted and incorporated into this zoning ordinance. It is as much a part of this zoning ordinance as if actually depicted within its pages.
(B) Maintenance and updates. The Zoning Administrator is responsible for directing revisions to the official zoning map to reflect its amendment as soon as possible after the effective date of zoning map amendments (rezonings). No unauthorized person may alter or modify the official zoning map. The Zoning Administrator may authorize printed copies of the official zoning map to be produced and maintain digital or printed copies of superseded versions of the official zoning map for historical reference.
(C) District boundaries. When the zoning map shows a zoning district boundary as following a particular feature, or reflects a clear intent that the boundary follows the feature, the boundary will be construed as following that feature as it actually exists.
(D) Map interpretations. Where any uncertainty exists about a zoning boundary, the actual location of the boundary will be determined by the Zoning Administrator using the following rules of interpretation.
(1) A boundary shown on the zoning map as approximately following a river, stream, lake or other watercourse will be construed as following the actual centerline of the watercourse. If, subsequent to the establishment of the boundary, the centerline of the watercourse should move as a result of natural processes (flooding, erosion, sedimentation, etc.), the boundary will be construed as moving with the centerline of the watercourse.
(2) A boundary shown on the zoning map as approximately following a ridge line or topographic contour line will be construed as following the actual ridge line or contour line. If, subsequent to the establishment of the boundary, the ridge line or contour line should move as a result of natural processes (erosion, slippage, subsidence, etc.), the boundary will be construed as moving with the ridge line or contour line.
(3) A boundary shown on the zoning map as approximately following lot lines or other parcel boundaries assigned by the Will County Supervisor of Assessments will be construed as following such lot lines or parcel boundaries.
(4) A boundary shown on the zoning map as approximately following a street or railroad line will be construed as following the centerline of the street or railroad right-of-way.
(5) A boundary shown on the zoning map as approximately following the boundary of an adjacent municipality will be construed as following that boundary.
(6) A boundary shown on the zoning map as approximately parallel to, or as an apparent extension of, a feature described above will be construed as being actually parallel to, or an extension of, the feature.
(7) Zoning boundaries that do not coincide with a property line, parcel boundary, landmark or particular feature will be determined with a scale.
(8) It is the intent that the entire unincorporated area of the county, including all land and water areas, rivers, streets, alleys, railroads, and other right-of-ways, be included in the districts established by this zoning ordinance. If any area is not shown on the zoning map as being included in a zoning district, it will be deemed to be classified in the E-1 district until otherwise reclassified by a zoning map amendment in accordance with § 155-16.30.
(E) Split-zoned lots.
(1) The zoning map may not be amended to classify a single lot into two or more base zoning districts.
(2) The split zoning of any newly created lot (into more than one base zoning district classification) is prohibited.
(3) When an existing lot is classified in two or more base zoning classifications the following rules apply, at the owner's option:
(a) Each of the separate zoned areas on the lot may be treated as a separate zoning lot and developed in accordance with the zoning district regulations that apply to each respective area;
(b) The more restrictive provisions of the subject zoning districts, including but not limited to, use, parking, signs, setbacks, height and other lot and building regulations, may be applied to the entire lot; or
(c) When one zoning district applies to at least 75% of the total lot area and the other zoning district occupies no more than 5,000 square feet of the total lot area, the regulations of the zoning district occupying the larger portion of the lot may be applied to the entire zoning lot.
(4) Building setbacks do not apply along base zoning district boundary lines that split a lot under single ownership.
(Ord. effective 10-1-2012; Ord. 18-1, passed 1-18-2018)