§42-32.
  Office Institutional District (OI)
A.
Purpose. The purpose of the Office Institutional District (OI) is to foster orderly growth where the principal
use of land is a mixture of office, institutional, and residential. The intent of this district is to allow for office,
institutional and residential development consistent with the recommendations of the Comprehensive Plan. In
accordance with the Comprehensive Plan, the district will allow for and provide office, institutional, and
residential development that: (1) is directed largely to Community Service Centers as defined in the
Comprehensive Plan; (2) is compatible with adjacent development and the surrounding community; and (3)
will minimize congestion and sprawl.
B.
Density and Dimensional Requirements. Each use allowed in this district shall at a minimum conform to the
following requirements (in the case of a nonresidential use the residential density requirements shall not
apply). In some cases a specific use may be required to meet the 
Supplemental Requirements as set forth in §42-63 (Supplemental Requirements).
Table 2.6. OI Density and Dimensional Requirements
(1) Residential Density (units/acre)
(2) Standard 
4
(3) Maximum 
16
Maximum Impervious Surface (%) 
80
(4) Yard Setbacks (feet)
Front or ROW
Local
20
Collector
25
Thoroughfare
35
Boulevard
45
Expressway
55
Freeway
60
Side
10
Rear
10
Maximum Height (feet) 
50
(1)
Residential density shall be calculated utilizing the entire acreage of a tract of land. Under this
scenario, residential density shall be determined based on the following formula:
Lot size x allowable units per acre = permitted dwelling units
The following example assumes a 5 acre tract with an allowable density of 4
units/acre:
5 acres x 4 units per acre = 20 permitted dwelling units
The maximum residential density for portions of the tract with a slope of 60 percent or greater
(where such slope areas of the tract account for ten (10) percent or more of the tract) shall be one-
half (½) the eligible density.
(2)
Standard residential density shall be applied:
a.
On a lot existing at the time of the initial adoption of this Chapter, where there is not
adequate area to comply with the applicable standard residential density requirement.
b.
To single-family residential uses.
(3)
Maximum residential density shall be available to applicants proposing five (5) or more dwellings in
any combination of the following unit types (duplexes, triplexes, quadraplexes and multifamily
dwellings with five (5) or more units and specifically excluding single-family units) where:
a.
A total of at least five (5) units would be permitted by standard residential density, and 
b.
Such dwellings are generally served by both: (1) a public water supply system and (2) a
sewage disposal system (of the following types: municipal, approved public, or approved
community) which meet the requirements of the local or State authorities having
jurisdiction thereof.
  
(4)
Accessory structures shall be located in side or rear yards and shall be setback a minimum of five (5)
feet from any property line.