§ 9.108 GENERAL DISTRICT PROVISIONS.
   (A)   Establishment of zoning districts.
      (1)   Primary districts. In order to carry out the purposes and provisions of this article, all of the property within the City of Columbia Heights is hereby divided into the following zoning districts:
 
Residential Districts
R-1
Single-Family Residential District
R-2
Two-Family Residential District
R-3
Limited Multiple-Family Residential District
R-4
Multiple-Family Residential District
 
Commercial Districts
LB
Limited Business District
GB
General Business District
CBD
Central Business District
Industrial Districts
I-1
Light Industrial District
I-2
General Industrial District
Mixed Used Planned Development District
MXD
Mixed Use District
 
      (2)   Overlay districts. In order to carry out the purposes and provisions of this article, property within the City of Columbia Heights may also be subject to the following overlay zoning districts:
 
Overlay Districts
FP
Floodplain Management District
SH
Shoreland Management District (reserved)
 
   (B)   Official zoning map.
      (1)   Designation of map. The location and boundaries of the zoning districts established by this section are hereby established on the “Zoning Map of Columbia Heights, Minnesota,” dated March 2001, which is hereby adopted as the official zoning map of the city. This map and all of the notations, references, amendments and other information shown thereon shall have the same force and effect as though fully set forth and described in this article.
      (2)   Maintenance of map. The Zoning Administrator shall be responsible for maintaining the official zoning map. All amendments to the district boundaries as shown on the map shall be recorded within a reasonable time after official publication of the amendment. The official zoning map shall be kept in the Community Development Department and shall be open to public inspection at all times during which the city offices are customarily open.
   (C)   District boundaries.
      (1)   Interpretation. The following rules shall be used to determine the precise location of any zoning district or overlay district boundary, as shown on the official map:
         (a)   Boundary lines shown as following or approximately following the corporate limits shall be construed as following such limits.
         (b)   Boundary lines shown as following or approximately following streets, alleys or other public rights-of-way shall be construed as following the centerlines of such rights-of-way.
         (c)   Boundary lines shown as following or approximately following platted lot lines or other property lines shall be construed as following such lines.
         (d)   Boundary lines shown as following or approximately following railroad lines shall be construed as following the centerline of the main tracks of such railroad lines.
         (e)   Boundary lines shown as following or approximately following shorelines of any lakes shall be construed as following the ordinary high water level of such lakes. In the event that the ordinary high water level changes, the boundary shall be construed as moving with the ordinary high water level.
         (f)   Boundary lines shown as following or approximately following streams, rivers or other waterways shall be construed as following the channel centerline of such waterways. In the event that the location of such waterway naturally moves, the boundary shall be construed as moving with the channel centerline.
         (g)   Boundaries shown as separated from and parallel or approximately parallel to any of the features listed herein shall be construed as parallel to such features and at such distances as actually shown on the official map.
         (h)   If district boundary lines do not follow any of the above described lines, the district boundary lines are established as drawn on the zoning map and shown by written dimension.
      (2)   Property in multiple districts. Where a boundary line divides a lot of record which was in single ownership at the time of enactment of this article into two or more zoning districts, any portion of such lot within 50 feet of either side of such a dividing boundary line may be used for any use of either district; provided, however, if any portion of such lot shall extend beyond the 50-foot limitation, the boundary line as shown shall prevail.
      (3)   Appeal of interpretations. Appeals from the Zoning Administrator's determination and questions of doubt concerning the exact location of boundary lines shall be heard by the Board of Appeals and Adjustments.
   (D)   Designation of annexed property. Annexed property shall be placed in the R-1, Single-Family Residential District, unless specific action is taken at the time of annexation to designate it otherwise.
(Ord. 1428, passed 5-29-01)