§ 155.412 DENSITY AND DIMENSIONAL STANDARDS.
   (A)   General. The following density and dimensional standards shall apply to residential open space development:
Lots or Parcels Served by Private Onsite Waste Treatment Systems
Lots or Parcels Served by Centralized Sewage Facilities
Lots or Parcels Served by Private Onsite Waste Treatment Systems
Lots or Parcels Served by Centralized Sewage Facilities
Accessory building setback
10 feet from all lot lines
10 feet from all lot lines
Maximum height
35 feet
35 feet
Minimum front yard
30 feet
30 feet
Minimum lot area
20,000 square feet*
15,000 square feet
Minimum lot width
100 feet
100 feet
Minimum rear yard
30 feet
30 feet
Minimum side yard
20 feet, 8 feet minimum
20 feet, 8 meet minimum
NOTES TO TABLE:
*   Minimum lot size dependent on receiving a permit for on-site septic treatment from the Saginaw County Department of Public Health. Minimum lot area of 40,000 square feet given as a guide.
 
   (B)   Separation distances for open space development.
      (1)   The outer boundaries of all open space developments shall conform to the following separation distances:
         (a)   From existing or proposed primary roads: 50 feet;
         (b)   From all perimeter subdivision boundaries: 75 feet;
         (c)   From cropland or pasture land: 100 feet;
         (d)   From buildings or barnyards housing livestock: 300 feet;
         (e)   From other open space developments: 100 feet;
         (f)   From wetlands, flood plains or water courses: 50 feet; and
         (g)   From active recreation areas, such as parks or play fields: 100 feet.
      (2)   All separation areas for open space developments along existing streets shall be landscaped in order to block views of new residential development, preserve scenic views and protect rural landscape character.
   (C)   Calculation of site capacity.
      (1)   For open space development, the calculation of site capacity or the number of dwelling units permitted on a site shall be based on net buildable acreage. The applicant shall determine the net buildable acreage (NBA) using the following method, substantiated by sufficient plans and data to verify the calculations:
Gross Acreage of Site
Acres
Gross Acreage of Site
Acres
From the gross acreage, subtract:
All lands located within existing street rights-of-way
acres
All lands located within existing utility and railway rights-of-way
acres
All lands located within a flood plain
acres
All lands located within a pond or lake
acres
50% of lands having a slope between 12% and 20%
acres
25% of the area located within a woodland:
acres
The result is the net buildable area:
acres
 
         (a)   The elevation of the 100-year flood plain determined through flood plain studies shall be used where available. Where flood stage data are not available, the regulatory flood elevation shall be determined by a registered professional engineer.
         (b)   Where two or more categories overlap, the overlapping acreage shall be counted only once, using the most restrictive classification.
      (2)   To determine the number of units permitted on a given site, the net buildable acreage shall be divided by the minimum lot size within the existing zoning district and then adding 10% to that number and rounding to the nearest whole number, excepting that each lot must be a minimum of 15,000 square feet.
(Ord. 06-14-Z, passed 10-3-2006; Ord. 06-14, passed 10-17-2006)