§ 16.60.050  STREET NAMING AND NUMBERING.
   A.   General.
      1.   Street names shall be assigned at the time of subdivision in accordance with the standards of this section and shall be designated on the recorded final plat as specified in § 16.76.070 (Subdivision Street Naming And Addressing).
      2.   Street numbers shall be assigned at the time of subdivision in accordance with the standards of this section and shall be designated on the recorded final plat as specified in § 16.76.070 (Subdivision Street Naming And Addressing).
      3.   Unplatted metes and bounds parcels will be assigned an address by the Zoning Enforcement Officer at the time they are developed with a principal structure. An address will consist of a number, based on § 16.60.050.C. (Address Numbering), and a street name, based on county records of street names.
      4.   Assignment of a city name or ZIP code is the responsibility of the U.S. Postal Service.
      5.   Only one address will be assigned to each lot or parcel with a principal building. Additional address numbers will not be assigned when more than one principal building or use is on a property, nor to accessory structures. A property owner with multiple principal buildings or uses may create and use additional addressing information, such letters or numbers for suites, buildings, units, etc., so long as it is acceptable to the U.S. Postal Service and the information is provided to the appropriate emergency response agencies.
   B.   Street Naming. All streets shall be named and, in the case of branching streets, the line of departure from one street to another shall be shown. Each street shall have a unique name that is not a duplicate of any other in the same or any adjoining McHenry County township. The use of streets with the same name differentiated only by compass direction or by street type (i.e., street, lane, court, road, circle, etc.) are prohibited. However, a loop-type road needs only one street name for the entire loop.
   C.   Address Numbering. Even numbers are assigned to locations on the north or east sides of all streets and roads, and odd numbers are assigned to all locations on the south or west sides of all streets and roads.
   D.   Baselines. The street and road addressing system has two (2) baselines. The first runs north and south along the east edge of the county bordering on Lake County, Illinois. The second runs east and west across the county at the north edges of Marengo, Seneca, Dorr, and Nunda Townships and therefore along the south edges of Dunham, Hartland, Greenwood, and McHenry Townships.
   E.   Division of Miles into “Blocks” or Tenth-Mile Segments.
      1.   Each mile (section) out from the baseline will be divided into ten (10) equal segments or blocks. The first block or tenth-mile (0.1-mile) segment within that mile will be designated as the one hundred (100) block. Each block will include five hundred and twenty-eight (528) feet of street or road frontage if the road or street is perpendicular to the baseline.
      2.   The second block will be designated as the two hundred (200) block, the third block as the three hundred (300) block, etc. through the tenth, which will be the one thousand (1000) block.
   F.   Assigning Address Numbers to Property.
      1.   On roads and streets that are perpendicular to the baseline, a number will be assigned to each fifty-two and eight-tenths (52.8) feet of each tenth-mile (0.1-mile) segment except in cases of stores or similar situations where each possible address would include less frontage.
      2.   More or fewer numbers should be used when necessary in order for block numbering to change at cross roads or streets.
      3.   The smallest odd house number in a block will be one (1). The smallest even house number will be two (2).
      4.   In cases where lots have more than fifty-two and eight-tenths (52.8) feet of frontage, numbers will be omitted or skipped. In the case of lots with one hundred (100) feet of frontage, for instance, every other number is used. Consecutive numbers shall not be skipped arbitrarily.
      5.   Where a street or road runs at an angle or is curved, the first consideration is whether it runs predominantly north and south or east and west. It will then be numbered accordingly, and a number will be assigned to each fifty (50) running feet of frontage on the street or road, and the block number if changed upon crossing the tenth-mile (0.1-mile) segment.
      6.   Where a street or road in a subdivision makes a loop that intersects with the same street, the numbers shall be continuous from one end to the other.
   G.   First Mile Addresses.
      1.   Numbers will continue progressively so that normally final numbers in the first mile and in the tenth-mile (0.1-mile) segment of that mile would be 1019 and 1020.
      2.   On a curving and diagonal road or street, the numbers would continue beyond 1019 and 1020 as needed.
   H.   Second Mile Addresses.
      1.   Numbers in the first block of the second mile from the baseline will begin 1101 and 1102 and finish with 1119 and 1120.
      2.   Numbers in the second block will begin with 1201 and 1202 and progress through each block or tenth-mile (0.1-mile) segment and until numbers in the tenth block would normally end with 2019 and 2020.
   I.   Third through Tenth Mile Addresses. In the third mile from the baseline, numbers will begin 2101 and 2102 and normally end with 3019 and 3020. Addresses would progress in this way through the tenth mile, which would begin with 9101 and 9102 through 10019 and 10020.
(Ord. O-201410-10-035, passed 10-14-2014; Ord. O-201601-ZBA-006, passed 1-19-2016; Ord. O-201603-ZBA-010, passed 3-17-2016, § 15.5; Ord. O-201803-ZBA-10-08, passed 3-19-2018; Ord. O-201808-10-033, passed 8-21-2018)