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Postville City Zoning Code

165.18 R-1

RESIDENTIAL DISTRICT.

   1.   Statement of Intent. The R-1 Single Family Residential District is intended to include areas of lower density residential development where utilities are presently available, and areas suitable for future residential development where utility service can be reasonably extended contiguous to existing development within the corporate limits. No structures shall be constructed or placed within the 25-foot setback on a street side. This does not include usual steps.
   2.   Permitted Uses and Required Parking.
 
Permitted Principal Uses and Structures
Minimum Off-Street Parking
Essential services
None
Single family dwellings
2 spaces
 
   3.   Permitted Accessory Uses and Structures.
      A.   Uses and structures clearly incidental to the permitted principal uses or structures of this district, not involving the conduct of business on the premises.
      B.   Private garages, carports, swimming pools, tennis courts, gardens, and greenhouses not operated for commercial purposes.
      C.   Temporary structures and equipment used in conjunction with construction work, provided that such structures and equipment are removed promptly upon completion of the construction work.
      D.   A detached structure shall be located a minimum of four feet from the principal structure. Accessory structures shall not be larger than the area of any one floor of the main or principal structure.
      E.   Structures attached to the principal structure shall be considered part of the principal structure for setback purposes and shall conform to the same front, side, and rear setback yard regulations.
      F.   No accessory structures shall be erected in the front yard.
      G.   Accessory structures shall not exceed or occupy more than 50 percent of the square footage of the required rear yard.
      H.   Industrial containers and other enclosures not consistent with the residential intent of this district shall not be permitted as accessory structures in this zoning district. This includes, but is not limited to, shipping containers of any size, tractor trailers of any size used for storage regardless of whether or not the trailer is mobile, or similar enclosures that were not originally intended for residential use.
   4.   Special Exception Uses and Structures. Subject to Section 165.13(5) and other requirements contained herein, the Board of Adjustment may permit the following:
      A.   Utility Systems and Substations. Utility systems and substations, but not including equipment storage structures or yards or administrative or sales offices, provided that any substation shall meet the front and rear yard requirements for dwellings and shall provide side yards of not less than 20 feet.
      B.   Parks and Recreation Areas. Five off-street parking spaces for each one acre developed for active usage.
      C.   Home Occupations.
   5.   Bulk Regulations.
Maximum Height
All structures
35 feet
Minimum Lot Area
All lots
8,000 square feet
Minimum Lot Width
All lots
60 feet or 45 feet Minimum width on the eye of the cul-de-sac
Required Setbacks (Minimums)*
Front Yard
25 feet
Rear Yard
30 feet
Side Yard
8 feet**
Side Yard Corner Lot
25 feet
Accessory Use or Structures
Portable or otherwise erected inside yards
8 feet
Accessory structures wholly within the rear yard
2 feet
Accessory structures rear lot lines unless it is on a street side
4 feet
*A structure (garage) with vehicle access onto a street or alley shall have a minimum 15-foot set-back from the property lines.
**When a lot is adjoining a residential use or residential zoned lot the side yard setback shall be a minimum of 25 feet.
 
   6.   Special Requirements.
      A.   The R-1 District shall observe the fencing and shrubbery requirements as prescribed in Section 165.26.
      B.   All new principal structures placed in R-1 Districts shall have a minimum length of 24 feet on all sides of the structure. For this requirement, porches, garages, and accessory buildings, which are otherwise permitted by this section, are not included.
      C.   Any materials used for principal or accessory structures shall be acceptable to a residential district. Corrugated fiberglass panels are permissible only for greenhouses and skylights. Galvanized metal is not a permissible building material. Steel or fiberglass siding used in agricultural or commercial construction is not a permissible building material for residential siding. Also, roofing material of any nature is not permissible building material for residential siding. For unattached accessory buildings, nongalvanized steel may be used for siding and roofs.
      D.   Any structure not placed on a permanent foundation shall be anchored in a permanent location and comply with setback requirements.