[Ord. No. 4190, 2-1-2021]
A. 
Table 415.005.A, Zoning Districts, lists the base zoning districts and overlay zoning districts established by the adoption of the Official Zoning Map.
Table 415.005.A
Zoning Districts
Abbreviation
District Name
Residential Zoning Districts
RR
Rural Residential
R1
Residential 1
R2
Residential 2
R3
Residential 3
R4
Residential 4
R5
Residential 5
R6
Residential 6
Nonresidential and Mixed-Use Zoning Districts
MU
Mixed-Use
CO
Commercial-Office
C1
Commercial 1
C2
Commercial 2
LI
Light Industrial
PA
Public Activity
Overlay Zoning Districts
PUD
Planned Unit Development
UPT
Uptown
B. 
Some of the zoning district names established within this Code differ from previous versions of this Code. In instances where there may be references to the previous zoning district nomenclature, Table 415.005.B, Zoning District Transition Table, identifies how each of the previous district classifications was renamed for this Code. This table shall only be used for comparison purposes.
Table 415.005.B
Zoning District Transition Table
Previous Zoning Districts
Current Zoning Districts
Abbreviation
District Name
Abbreviation
District Name
Residential Zoning Districts
NU
Non-Urban
RR
Rural Residential
SR-3
Single-Family Residential
R1
Residential 1
SR-1
Single-Family Residential
R2
Residential 2
SR-2
Single-Family Residential
R3
Residential 3
None
R4
Residential 4
MF
Multiple-Family Residential
R5
Residential 5
None
R6
Residential 6
Nonresidential and Mixed-Use Zoning Districts
None
MU
Mixed-Use
OP
Office and Research Park
None
BP
Business Park
CO
Commercial-Office
CB
Community Business
C1
Commercial 1
HC
Highway Commercial
C2
Commercial 2
LI
Light Industrial
LI
Light Industrial
PA
Public Activity
PA
Public Activity
Overlay Zoning Districts
PD
Planned Development
PUD
Planned Unit
PR
Planned Residential
Development
Overlay Zoning Districts
DLRD
Downtown Lakefront Redevelopment Overlay District
UPT
Uptown
FP
Floodplain
None
[Ord. No. 4190, 2-1-2021]
A. 
Incorporation of Map.
1. 
The location and boundaries of the zoning districts established by this Code are shown on the Official Zoning District Map of the City of Lake Saint Louis (Official Zoning Map) which is incorporated into this Code.
2. 
The Zoning District Map shall be maintained by and located in the office of the Community Development Director.
3. 
The Zoning Map shall include all notations, references, subsequent lawful changes or amendments and other information shown thereon as set forth or described herein.
4. 
The Zoning Map shall be updated regularly.
B. 
Zoning District Boundaries.
1. 
Except where otherwise necessary, zoning district boundaries shall follow the City's corporate limits, section lines, lot lines, right-of-way lines, or extensions of such lines.
2. 
Where a zoning district boundary divides a lot or parcel, the location of such boundary, unless indicated by dimension, shall be determined by the scale of the Zoning District Map by the Community Development Director.
3. 
Where a zoning district boundary coincides with a right-of-way line and that right-of-way line is vacated by the entity to whom the right-of-way had been dedicated, the zoning district boundary shall then follow the centerline of the former boundary.
C. 
Boundary Clarification.
1. 
In the event that a zoning district boundary is unclear or disputed, the Community Development Director shall determine the location of the boundary. Such determination is subject to an appeal pursuant to Section 405.240, Appeal of Administrative Enforcement.
D. 
Zoning Map Amendments.
1. 
Amendments to the boundary of any zoning district shall require approval of a Zoning Map amendment pursuant to Section 405.100, Zoning Map Amendment.
2. 
A list of Zoning Map amendment ordinances shall be kept on file in the office of the Community Development Director.
E. 
Annexed Land.
1. 
Any land that is voluntarily or involuntarily annexed into the corporate limits of the City pursuant to Section 405.110, Annexation, shall retain the zoning designation originally established by St. Charles County until the annexed property is appropriately zoned in accordance with Section 405.100, Zoning Map Amendment.