§ 157.040 DISTRICTS.
   (A)   Basic zoning districts. For the purpose of this chapter, the city is hereby divided into the following basic zoning use districts:
District Symbol
Intent and Primary Use
District Symbol
Intent and Primary Use
A-1
Preserve land to be utilized for interim agriculture and commercial food production on lots smaller than those required in CFP Districts. A-1 Districts provide areas of rural lot density housing with lots large enough for significant agricultural activity to occur.
A-2
Provide rural low density housing in agricultural districts on lands not capable of supporting long term, permanent commercial food production. A-2 District lot sizes will provide for marginal agriculture and hobby farming.
C
Preserve, protect and manage environmentally sensitive areas having wet soils, steep slopes, exposed bedrock or unique natural and biological characteristics in accordance with compatible uses.
GB
Provide districts for a general mix of commercial businesses. General Business Districts will be located in areas where there is a demand for diversified business districts and in areas capable of supplying the utilities for such development.
I
Provide areas adjacent to major thoroughfares and in areas where public utilities are available for the express use of industrial developments. Designation of Industrial Districts will help attract industry; and therefore, stabilize the tax base and increase the employment of the city.
LB
Provide areas specifically designated for Limited Business such as professional offices.
MF
Provide areas capable of supporting multiple-family dwellings in terms of public utilities and services, and thereby allowing a variety of housing types in greater densities.
R-1
Provide low density residential areas in rapidly developing rural settings. R-1 Districts will provide lots large enough to maintain a semi-rural setting, but lots not large enough to support commercial agriculture. R-1 Districts will provide a buffer between agricultural districts and urban, or rapidly developing districts.
R-2
Provide residential estates in areas slated for future staged public utilities. These R-2 Districts will require lots large enough to support on-site sewage treatment facilities until such time public sewer and other utilities are available.
R-3
Provide residential suburban lots in areas where public utilities exist for those people who desire larger lots on urban fringes.
R-4
Provide residential urban lots in areas where the full range of public utilities and services are available.
RB
Provide land for Retail Business, primarily shopping, in areas where there is, or will be, the greatest demand for such services and in areas capable of supporting the intensive use of the land demanded by retail businesses.
 
   (B)   Overlay zoning use districts. At the time of adoption of this chapter or at some future date, the City Council may adopt overlay districts to promote specific orderly development or to protect some specific sensitive natural resource.
      (1)   The following overlay regulations are in addition to regulations imposed by the existing basic zoning use districts:
 
District Symbol
Intent and Primary Use
AZ
Protect life from potential aircraft catastrophe and noise by restricting development in Airport Zones.
CFP
Preserve commercial agriculture as a viable permanent land use and a significant economic activity within the city. Areas designated CFP would provide land area for permanent economically viable commercial food production.
FP
Protect the natural environment, homes and other structures from flood waters by preserving the natural overflow areas of lakes, streams and rivers.
PUD
Allow innovative and flexible design for developments that are more sympathetic to both humans and nature, and which are not possible under current regulations.
 
      (2)   The following overlay regulations are in lieu of regulations imposed by the existing basic zoning use districts:
 
District Symbol
Intent and Primary Use
LS-1
Protect the ecological and scenic values of natural, undeveloped water bodies from the harmful effects of development.
LS-2
Protect the recreational value of a water body while allowing residential development along the shoreline.
LS-3
Encourage development on those water bodies currently being developed for residential and recreational uses.
MR
Protect the environmentally sensitive qualities of the Mississippi River Corridor Critical Area yet maintain the economic importance of the corridor by guiding industrial, commercial, residential and recreational developments as well as transportation throughout the Mississippi River Corridor.
SCR
Conserve and protect the natural scenic values and resources of the St. Croix River Valley in order to maintain the high standard of environmental quality indicative of one of the few remaining wild rivers in the nation.
 
(Ord. passed - -) Penalty, see § 157.999