Sec. 20-57. - Authority.

In order to promote the convenience, safety and general welfare of the people of the county, pursuant to the authority contained in section 65451 of the Government Code of the state, and based upon the master plan of building numbering, adopted April 20, 1954, by the board of supervisors, there is established a system of building numbers in the county.

(Ord. No. 221, § 100, 6-22-54)

Sec. 20-58. - Extent of system.

The system shall extend over the entire unincorporated area of the county, except for city numbering areas as hereinafter defined.

(Ord. No. 221, § 101, 6-22-54)

Sec. 20-59. - Cities—May be included in county-wide system.

Any incorporated city may be included in the countywide system at any time upon the presentation of a written request from the governing body of such city to the board of supervisors. Any unincorporated area which has been designated as a city numbering area may also be included in the county-wide system by the board of supervisors. In each case, such inclusion shall be accomplished in the manner prescribed by law for the adoption of specific plans.

(Ord. No. 221, § 102, 6-22-54)

Sec. 20-60. - Same—Exclusion of urbanized areas.

Urbanized unincorporated areas and areas surrounding incorporated cities which are considered to be of an urban character may be designated "city numbering areas" and excluded from the application of the county-wide system.

(Ord. No. 221, § 200, 6-22-54)

Sec. 20-61. - City numbering areas—Generally.

City numbering areas surrounding incorporated cities shall be established in the following manner:

The county planning commission shall:

(1)

Propose boundaries for each such city numbering area.

(2)

Devise and propose a local system of building numbering as defined in section 20-64 below for each such city numbering area.

(Ord. No. 221, § 201, 6-22-54)

Sec. 20-62. - Same—Methods of establishing in unincorporated urban areas.

In the case of unincorporated urban areas, proceedings for the establishment of city numbering areas may be originated either upon a petition of property owners residing in the proposed area, or upon resolution of the board of supervisors. The procedure for the establishment of city numbering areas shall be the same as that provided in section 20-61.

(Ord. No. 221, § 202, 6-22-54)

Sec. 20-63. - Same—Maps.

Any city numbering area as provided in this article shall be adopted through the medium of a map on which shall be shown its exact boundaries, proposed numbering system, and all other pertinent and necessary information. Any such map shall be deemed to be a unit in the specific plan of building numbers of the county and shall be processed in the manner prescribed by state law for the adoption of specific plans.

(Ord. No. 221, § 203, 6-22-54)

Sec. 20-64. - Same—Conformance of system to city system.

Such city numbering areas shall be assigned building numbers which need not relate to the county-wide system of building numbers established by this article, but which do relate to a system within the incorporated city or unincorporated community within each city numbering area. The county shall exercise its authority within unincorporated areas contained in such city numbering areas to the extent of adopting only such house numbering systems as will eliminate duplications, prevent confusion and generally serve the purpose of this article.

(Ord. No. 221, § 204, 6-22-54)

Sec. 20-65. - Same—Specific plans; amendments.

(a)

Specific plans for city numbering areas, when subsequently adopted by amendments to this article shall, in each separate case, be consecutively numbered as an item under section 20-60

(b)

Such amendments shall identify by serial number each additional item which identifying serial number shall also constitute a part of the identification of the map adopted by reference as a part of said amendatory ordinance. All maps of such city numbering areas adopted by reference shall be kept on file and available for public inspection in the office of the county planning commission during regular office hours.

(c)

Such amendments shall further identify such city numbering areas by name of the city or unincorporated community contained therein and by an accurate description of the boundary of such city numbering area.

(d)

Where the boundary of any such city numbering area consists of the center line of an established road, all numbers issued to property fronting on both sides of such road shall conform to the county-wide system.

(Ord. No. 221, § 205, 6-22-54; Ord. No. 221A, § 1, 11-30-54)

Sec. 20-66. - Base line for building numbers.

The system shall have an east-west base line and a north-south base line. The east-west base line shall be along the line of Barstow Avenue. The north-south line shall be a line intersecting the east-west base line and drawn from the north-east corner of section 3, Township 17 South, Range 23 East, Mount Diablo Base and Meridian, south along section lines to the southeast corner of section 34, Township 20 South, Range 23 East, Mount Diablo Base and Meridian; thence west one-half mile, more or less, to the northeast corner of section 3, Township 21 South, Range 23 East, Mount Diablo Base and Meridian; thence south along section lines to the southeast corner of section 34, Township 24 South, Range 23 East, Mount Diablo Base and Meridian.

(Ord. No. 221, § 300, 6-22-54)

Sec. 20-67. - Application of numbers.

Each mile shall be assigned 1,000 numbers. Numbering shall proceed southerly from the east-west base line and westerly from the north-south base line. East numbers shall apply to 10.56 feet, plus or minus, of frontage. When a section has a dimension greater or less than one mile, or 5,280 feet, the 1,000 units shall remain the same, but the length of each unit shall be proportionately adjusted to a greater or lesser length as the case may be. The building number assigned to any unit shall be determined by the position of the particular unit in the 1,000 units in the section mile and the number assigned shall be the number applicable to the unit occupied by the building or establishment to be identified by such number.

(Ord. No. 221, § 301, 6-22-54)

Sec. 20-68. - Mountainous areas.

The application of 1,000 numbers per section mile shall apply only to valley areas where roads follow generally the section grid. When the plan is extended into mountainous areas where an irregular road pattern exists, the numbers shall be assigned on the basis of 1,000 numbers per road mile of 5,280 feet.

(Ord. No. 221, § 302, § 6-22-54)

Sec. 20-69. - Odd and even number assignment.

(a)

All numbers issued on the north and west sides of roads shall be even numbers and all numbers assigned on the south and east sides of roads shall be odd numbers. For the purpose of assigning odd and even building numbers, a thoroughfare having a northeast-southwest or a northwest-southeast alignment or any alignment having a direction within the north quadrant or south quadrant between such northeast-southeast and northwest-southeast lines shall be deemed to be a north-south thoroughfare. Any other straight or approximately straight thoroughfare shall be deemed to be an east-west thoroughfare.

(b)

Meandering, loop or other thoroughfares having irregular alignments may be assigned numbers best suited to serving the purpose of this article and it shall be the duty of the county planning commission, as an administrative policy, to determine the application to be employed.

(Ord. No. 221, § 303, 6-22-54)

Sec. 20-70. - Required posting.

Every person owning, controlling, occupying or using any house, store, storeroom, or building situate on premises fronting on any avenue, road, drive or other public way or place in the county shall within 30 days after assignment of a building number, install permanently on such premises the number issued, subject to the following provisions:

(1)

Accessory buildings need not be numbered but, if located on a separate unit of frontage as defined in section 20-67, may be assigned numbers if requested by the owner or proprietor of the principal establishment to which such building or buildings are accessory.

(2)

The number shall be made of a durable material.

(3)

All such numbers shall be of such type and so placed as to be easily visible and legible from the road, avenue, drive, or other public way or place upon which said premises front.

(4)

The numbers shall be of a size not less than three inches in height.

(Ord. No. 221, § 400, 6-22-54)

Sec. 20-71. - Old numbers.

Any building number existing on the date ordinance number 401 of June 22, 1954, or this article became or becomes applicable to the premises, and which is different than the new number assigned pursuant to this article shall be removed within 30 days after assignment of the new house number.

(Ord. No. 221, § 401, 6-22-54)

Sec. 20-72. - Specific assignments—Agency.

All numbers shall be assigned through the office of the county planning commission. The installation of the house numbering system established by this article shall be accomplished progressively and in such manner as the county planning commission shall from time to time direct.

(Ord. No. 221, § 500, 6-22-54)

Sec. 20-73. - Same—Notice.

Building numbers conforming to the provisions of this article shall be assigned by written notice and in such form as shall be directed by the county planning commission. Records of numbers assigned shall be kept in such form as the county planning commission may direct.

(Ord. No. 221, § 501, 6-22-54)

Sec. 20-74. - Same—Conflicts.

No department, official or public employee shall assign any number which is in conflict with the provisions of this article or use or allow to be used any such conflicting number on any permit, license or other public record.

(Ord. No. 221, § 502, 6-22-54)

Sec. 20-75. - Violation.

After the provisions of this article become applicable to any area in the county, every person owning, controlling or occupying any house, store, storeroom, or building required by this article to be numbered, who fails, neglects or refuses to procure, place, attach or maintain numbers on such premises and remove old numbers as provided herein, or who fails to place, attach or maintain the appropriate numbers on any new or altered structure within 30 days after the completion or occupancy of such structure (whichever comes first) shall be guilty of a misdemeanor, and upon conviction thereof shall be punished as provided in section 1-8.

(Ord. No. 221, § 600, 6-22-54)

Secs. 20-76—20-85. - Reserved.