(A)   To preserve existing living qualities of residential neighborhoods.

   (B)   To ensure future high quality amenity including, but limited to the provision of adequate light, air, privacy and convenience of access to the property.

   (C)   To increase convenience and comfort by providing usable open space and recreation space on the same lot as the housing units they serve.

   (D)   To prevent additions or alterations of structures which would damage the character or desirability of existing residential areas.

   (E)   To protect residential areas, to the extent possible and appropriate in each area, against unduly heavy motor vehicle traffic.

('69 Code, § 7-16.01, Subd. 1)

   The following are residential districts:

   (A)   R-1 One Family Detached. This district is intended to preserve, create and enhance areas for single family detached dwellings.

   (B)   R-2 One Family, Low Density District (0 to 3 dwelling units per acre). This district in intended to preserve, create and enhance areas for single family dwellings; both detached and attached (townhouses).

   (C)   R-3 Low Density Preservation Residential District. This district is intended to encourage the remodeling and enhancement of the older residential sections of the community without appreciably increasing density or reducing open space.

   (D)   R-4 Medium Density Residential District. This district is intended to encourage the gradual succession of land use in the older areas of the community and to encourage redevelopment of blighted or underutilized parcels.

   (E)   R-5 Multi-Family, Medium and High Density District (4 to 14 d.u./acre) This district is intended to create, preserve and enhance areas for multi-family use at high densities for families and singles. It is typically appropriate only in areas of good accessibility to thoroughfares, open space, public transportation, public community center, libraries and major shopping centers.

   (F)   R-6 Mobile Home District. This district is intended to create, preserve and enhance areas for mobile homes. See §§ 155.120 through 155.126 of this chapter.

   (G)   R-7 One Family, Incremental Growth. This district is intended to create areas for single family detached dwellings of small floor area whenever adequate provisions for expansions are provided.

('69 Code, § 7-16.01, Subd. 2) (Am. Ord. 1175, passed 9-13-21)

   (B)   Density. Table 1 designates the minimum lot size in area in square feet (or acres when indicated) and width in feet, the minimum yard setback for front, rear and side yards in feet, the clear passage to be maintained along a side yard in feet, the maximum height in feet and stories, the maximum floor area ratio, and the minimum floor area in square feet required of dwelling units. To determine the requirement for each district, find the category in the first column, the requirement for the category is found on the line directly below the designated district.

   (C)   Parking. Table 2 designates the minimum required parking and loading spaces by type of use.

   (D)   Location of certain nonresidential uses.

      (1)   Any commercial use except mortuaries and commercial communication towers, located in a residential district shall be in a building devoted primarily to a residential use and the entrance to the nonresidential use shall be from within the building.

      (2)   Parking lots to be located within a residential district shall be approved only after review of its location and features by the Administrator. The Administrator may make conditions for approval of use.

   (E)   Variable setback regulations. Notwithstanding the provisions of this chapter to the contrary, in order to provide maximum flexibility to owners of property on which construction has not occurred, the owner may elect to adopt a variable setback plan. Under the plan the setback may be reduced to not less than 25 feet, providing the following conditions are met:

      (1)   The minimum average setback of all structures on the same side of the street in a single block shall be at least 30 feet.

      (2)   The maximum difference in setback on two contiguous lots shall be ten feet.

      (3)   No more than two contiguous lots shall have the same front yard setback.

      (4)   Any lot in a proposed development that is adjacent to a previously developed lot, shall use the standard minimum front yard setback.

      (5)   This option shall apply only to a minimum of four or more contiguous lots on the same side of the street in a single block.

      (6)   The owner shall adopt the variable plan by filing with the Zoning Administrator a map of the lots affected. The map shall show in sufficient detail the setback selected for each such lot. The owner shall include in any instrument conveying title to such a lot a stipulation of the designated setback for such lot. Prior to the conveyance of the first lot included in such plan, the owner may file with the Zoning Administrator an amended plan revising the setbacks; provided, however, that the amended plan meets all of the requirements of this section. After the sale of the first lot included in such plan, no changes may be made unless agreed to by at least 75% of the owners of lots included in the plan provided that the change meets all of the requirements of this section. Such changes shall be made in the form of an amended plan filed with the Zoning Administrator and signed by the required number of owners.

   (F)   Commercial communication towers are not permitted in residential districts unless the principal land use is a school, hospital or other institutional use. Any commercial communication towers located on property used primarily for a school, hospital or other institutional use must be utilized solely in support of the operations of the primary land use. Any commercial tower accessory to a school, hospital or other institutional use over 50 feet in height requires a conditional use permit in accordance with § 155.186.

('69 Code, § 7-16.01, Subd. 3) (Ord. 648, eff. 4-13-82; Am. Ord. 1159, passed 3-23-20) Penalty, see §155.999

   No development permit shall be issued for a multi-family use until the Administrator has made a determination that:

   (A)   Adequate facilities have been made for on-site private recreation use for all ages to occupy the building and that

   (B)   Trash storage will not adversely affect the occupants enjoyment of the dwelling units, nor occupants of surrounding uses and that

   (C)   Parking areas are separated physically from designated recreation areas and have minimum impact on surrounding uses and that

   (D)   Hard surfacing of alleys is planned if access to required parking is via the alley.

('69 Code, § 7-16.01, Subd. 4)

   No development permit for a residential use in the R-7 District shall be issued until the Administrator has made a determination that:

   (A)   A plan for the future expansion of a principal structure exists and is on file with the Administrator, and

   (B)   That the ultimate development of the site can be made to include three bedrooms, a car garage and a screened porch, all in desirable locations and without violation of the provisions of this title. ('69 Code, § 7-16.01, Subd. 5)

   Except as provided in § 155.059, accessory buildings shall be located in such a way as to meet the following requirements:

   (A)   Corner lots. In any R district, where a corner lot adjoins in the rear of a lot fronting on the side street and located in an R district, no part of an accessory building on such corner lot shall be nearer a side street lot line than the least depth of the front yard required along such side street for a dwelling on such adjoining lot. In no case shall any part of such accessory building be nearer to the side street lot line than the least width of the side year required for the principal building to which it is accessory.

   (B)   Front setback. No accessory use or structure in any R district shall be permitted nearer to any front lot line than the minimum required front yard of the subject parcel or parcels abutting the sideyards.

   (C)   Yard requirements. An accessory building shall be so located as to meet all yard and court requirements for a principal building of the same height and other dimensions as said accessory building except as follows:

      (1)   As provided in § 155.059.

      (2)   In any R district, accessory buildings shall be at least three feet from any side or rear lot line, provided said building is set back from the front lot line the minimum required front yard of the subject parcel, plus 25 feet.

   (D)   Without main building. In any R district no accessory building or structure shall be erected or constructed prior to the erection or construction of the principal or main building except for a garage on an abutting lot to the lot containing the principal building.

   (E)   Height. The side wall height of accessory buildings in R districts shall not exceed ten feet in height, and the overall height of said accessory buildings in R districts shall not exceed 20 feet. The side wall height shall be defined as the vertical dimension measured from the top of the ground floor to the top of the side wall plate of the accessory building. The overall height shall be defined as the vertical dimension measured from the average elevation of the finished lot grade at the front of the accessory building to the top highest point on the building.

   (F)   Location. An accessory building shall be located in the buildable lot area or required rear yard. When located in the required rear yard, it shall not occupy more than 35% of such required rear yard.

   (G)   Distance. No accessory building shall be constructed and/or located within six feet of the principal building.

   (H)   Square footage. In any residential district, the cumulative square footage of accessory structures on a lot shall be a maximum of 1,400 square feet.

('69 Code, § 7-16.01, Subd. 6) (Am. Ord. 706, passed 6-9-86; Am. Ord. 789, passed 5-10-93; Am. Ord. 845, passed 8-11-97; Am. Ord. 854, passed 1-12-98; Am. Ord. 1010, passed 2-12-08)