Article 3. Establishment of Zoning Districts

3.01 Establishment of zoning districts.

The unincorporated area of the county of Colusa is hereby divided into zoning districts, each of which is designated in this section, and each of which is identified for convenience by the letters indicated:

Zoning District Designation	Letters
Agricultural Preserve	A-P
Exclusive Agriculture	E-A
Upland Conservation	U-C
Rural Residential	R-R
Residential One-Family	R-1
Residential Two-Family	R-2
Residential Multifamily	R-3
Residential Multifamily/Professional	R-4
Neighborhood Commercial	C-1
Community Commercial	C-2
Highway Commercial	C-H
Light or Heavy Industrial	M
Floodway	F-W
Floodplain	F-P
Open Space	O-S
General Recreation	G-R
Airport	A-V
Public Facilities	P-F
Special or Combining Zones:
Planned Development	P-D
Agriculture	-A
Development Standards	-DS
General
Industrial
Commercial and Professional in Commercial Zones
Commercial and Professional in Residential Zones
Multiple-Family Dwellings
Mobile Home Park
Parking and Loading
Lurline Road
Hillside

3.02 Location and boundaries of zones.

The designation, location and boundaries of the aforesaid principal and combining zones shall be delineated on the official zoning maps of the county. Said maps and all notations, references, data and other information shown thereon shall be a part of this ordinance, designated as Exhibit A hereof.

3.03 Official zoning maps.

The zoning districts are delineated on the official zoning maps which, together with all explanatory matter entered thereon, are hereby adopted by reference and are declared to be a part of this title of the Colusa County Code. Regardless of the existence of purported copies of the Official Zoning Maps which may from time to time be made or published, the official zoning maps, which shall be located in the office of the director, shall be the final authority as to the current zoning status of the real property shown thereon.

3.04 Identification of official zoning maps.

The official zoning maps shall be identified by the signature of the chairman of the board attested by the county clerk, and bearing the county seal under the following words: “This is to certify that these are the Official Zoning Maps of the County of Colusa identified in Colusa County Zoning Ordinance No. 534” together with the date of the adoption of this ordinance.

3.05 Changes in official zoning maps.

(a)  If, in accordance with provisions of this title and California Government Code Sections 65853 – 65857, inclusive, a change is made in a district boundary or other matter shown on change is made in a district boundary or other matter shown on the official zoning maps, such change shall be entered on the official zoning maps promptly after the amendment has been adopted by the board.

3.06 Rules for interpretation of zoning district boundaries.

Where uncertainty exists as to the boundaries of zoning districts as shown in the official zoning maps, the following rules shall apply:

(a)  A boundary indicated as approximately following the center line of a road, street or highway shall be construed to follow the center line.

(b)  A boundary indicated as approximately following a platted lot line shall be construed as following the line.

(c)  A boundary indicated as approximately following city limits or the boundary of any special district or other political subdivision shall be construed as following the city limits or boundary.

(d)  A boundary indicated as following railroad lines shall be construed to lie midway between the main tracks.

(e)  A boundary indicated as following a shoreline shall be construed to follow the shoreline, and in the event of change in the shoreline shall be construed as moving with the shoreline; a boundary indicated as approximately following the center line of a stream, river, canal, lake or other body of water shall be construed to follow the center line.

(f)  A boundary indicated as parallel to or extensions of features indicated in subsections (a) through (e) of this section shall be so construed.

(g)  Distances not specifically indicated on the official zoning map shall be determined from the scale of the map by the director.

(h)  Where the location of a physical or cultural feature on the ground differs from its location on the official zoning map, and in other circumstances not covered by this section, the director shall interpret the zoning district boundaries.

(i)  Letters indicating the zoning district classification of property on the official zoning map shall apply to the whole of the area within the zoning district boundaries.

(j)  Where a zoning district boundary divides a lot the more restrictive zoning district classification shall apply to the entire lot as determined by the director.

(k)  Where a county road, street or alley is officially vacated or abandoned, the zoning district classification of abutting properties shall be extended to the lot lines thereof location within the road, street, or alley, or in the absence of any lot line so located, the former center line thereof.

3.07 Application of zoning district regulations.

(a)  No building or other structure, or land, shall hereafter be used or occupied, and no building or other structure or part thereof shall hereafter by erected, constructed, moved or structurally altered except in conformity with all of the regulations herein established for the zoning district in which district said land or building is located.

(b)  The regulations established by this title within each zoning district shall be minimum regulations and shall apply uniformly to each class or kind of building or other structure, or land.