Developments shall follow the standards of Chapter 15
of this title unless otherwise addressed in this section.
A. Site Landscaping: Within the northwest area overlay district, the use of native vegetation for landscaping is encouraged in common areas. Areas preserved with natural landscaping shall be maintained in accordance with local and state regulations governing control of noxious weeds. Mass grading for landscaping areas shall be avoided to reduce compaction of natural area/open space areas.
B. Off Street Parking And Loading:
1. Joint Parking: Joint parking arrangements are encouraged in the northwest area overlay district.
2. Off Site Or Remote Parking Facilities: Within the northwest area overlay district, remote parking is permitted so long as it is within reasonable walking distance to the principal use and it does not require crossing major physical barriers such as freeways, four-lane arterials, water bodies or other nonpedestrian friendly features. Reasonable walking distance is considered no more than a one-eighth (1/8) mile (660 feet) or a five (5) minute walk.
3. Parking Surfaces: Parking surfaces may be made of pervious materials such as pavers, pervious asphalt or concrete or other technology as identified in the "City Of Inver Grove Heights Stormwater Manual". These areas shall still be considered as impervious surfaces for storm water calculations; however, up to fifty percent (50%) of pervious pavement areas will be credited toward the twenty percent (20%) natural area/open space requirements (see subsection 10-13J-5
D1 of this article). Pervious material surfaces shall be clearly delineated on the approved final PUD plans. Long term redevelopment and maintenance must preserve the pervious pavement surface.
4. Parking Lot Curbing: Curbs shall be designed to meet the standards set forth in the "City Of Inver Grove Heights Stormwater Manual" so as to ensure safety and best management of storm water. Generally, curbs shall either be flat or have breaks at regular intervals to convey runoff into the storm water system unless a storm water management plan demonstrates that another curbing system meets storm water management performance objectives.
5. Minimum And Maximum Number Of Permitted Off Street Parking Spaces:
a. Subsection 10-15A-3
J of this title establishes a minimum number of required off street parking spaces for various land uses. With the exception of single-family dwellings and two- family dwellings, this article reestablishes the minimum required off street parking spaces and establishes a maximum allowed number of parking spaces as well.
b. The minimum required off street parking spaces shall be no less than seventy five percent (75%) of the minimum parking required by subsection 10-15A-3
J of this title. Pervious paving materials shall be used for the portion of parking over the minimum required off street parking spaces.
c. The maximum allowed off street parking spaces shall be no more than one hundred percent (100%) of the minimum parking required by subsection 10-15A-3
J of this title. (Ord. 1148, 5-29-2007)
d. The maximum allowed off street parking identified above may be exceeded by no more than ten percent (10%) of the total number of parking spaces, provided that at least fifty percent (50%) of the total parking lot surface area is paved with a pervious material consistent with techniques identified in the "City Of Inver Grove Heights Stormwater Manual" or fifty percent (50%) of the parking spaces are in a deck structure or underground. Parking in excess of the maximum shall be done with pervious paving materials. (Ord. 1148, 5-29-2007; amd. 2008 Code)
6. Parking For Multi-Family Residential (Including Townhomes) And Mixed Use: Fifty percent (50%) of total parking required for multi-family and mixed use development shall be underground parking, tuck-under parking or structured parking within or under the principal structure. The intent of this regulation is to minimize impervious surface that would result from surface parking lots.
7. Proof Of Parking: Developments that can accommodate parking allotments less than the minimum parking spaces required may do so, provided that the final PUD plan includes the identification of area dedicated for future parking needs to satisfy the minimum parking needs.
8. On Street Parking: Where on street parking is available, parking spaces that are adjacent to the lot frontage of the subject use may be counted towards the off street parking requirement.
9. Parking Lot Landscaping: Surface parking lots in excess of one hundred (100) spaces shall provide landscaped islands between contiguous bays of parking. Such landscaped islands shall also serve as a storm water cell and shall be designed according to the guidelines established in the "City Of Inver Grove Heights Stormwater Manual" (chapter 8, pages 14 and 91).
C. Driveways:
1. Driveway widths for single-family detached residential dwellings, two-family and twin home dwellings shall be no more than twenty feet (20') throughout its entire length, and curb openings shall be no more than twenty two feet (22'). In all other cases, driveway width shall be no more than thirty five feet (35') and curb openings no more than forty feet (40'). Where additional hard surface is desired, such as an additional parking space near the garage, where a turn around/guest parking space is desired or where a nonresidential development desires a boulevard or median design feature, additional pavement beyond the maximum width must be of a permanent pervious surface such as brick pavers, pervious concrete/asphalt or other technique as approved through the "City Of Inver Grove Heights Stormwater Manual".
2. Shared driveways are encouraged within the northwest area overlay district to reduce impervious surface coverage. No more than two (2) dwelling units may be served by a shared driveway, unless otherwise approved by the city council based on the criteria identified in section 10-13J-5
of this article. Shared driveways shall extend from a public or private street and shall not connect to any other existing or planned public or private street. Appropriate cross easements and maintenance agreements are required with submittal of final PUD plan and shall be recorded with the final plat.
3. Single-family residential driveways are encouraged to be constructed of pervious materials such as pavers, pervious concrete or pervious asphalt.
D. Downspouts And Sump Pumps:
1. All residential downspouts and sump pumps shall discharge to cisterns and/or permeable surfaces.
2. All nonresidential downspouts and sump pumps shall discharge to permeable surfaces if reasonably possible. (Ord. 1148, 5-29-2007)