§ 151.125  DENSITY AND DIMENSIONAL STANDARDS TABLES.
   The following tables (151.125(1) through 151.125(5)) establish standards for development in all base zoning districts.
 
COMMENTARY:
The residential and non-residential density and dimensional standards of this section are not a “guarantee” of development intensities. Other factors such as public facility availability, infrastructure capacity, building layout, and parking configuration may have the effect of limiting development intensity more than the stated standards. The inability to attain allowed development intensities shall not serve as justification for adjusting other standards.
 
 
Table 151.125(1): Agricultural and Residential District Density and Dimensional Standards, Conventional Residential Development
Zoning District
Maximum Density (Units per Acre) (§ 151.131 (F))
Min. Lot Size
Minimum Setbacks[3][4] (Ft.) (§ 151.131(C))
Max. ISR (§ 151.131 (D))
Max. Height (Ft.) (§ 151.131 (E))
Area (Sq. Ft.) (§ 151.131 (A))
Width (Ft.) (§ 151.131 (B))
Street
Side (Min/ Total)
Rear
AG
0.20
200,000
300
30
30/60
50
0.10[2]
40[1]
RE
0.20
200,000
300
30
30/60
50
0.10[2]
40[1]
E
0.45
80,000
190
30
19/48
30
0.15[2]
40[1]
R1
0.80
40,000
130
30
13/33
30
0.20[2]
40
R2
1.33
20,000
90
30
9/23
15
0.30[2]
40
R3
2.00
12,000
60
30
7/17
15
0.30[2]
40
R4
2.50
8,500
60
30
6/15
15
0.40[2]
40
R-4A
5.00
15
0.50[2]
40
R5
8.00
15
0.50[2]
40
R6
12.00
15
0.50[2]
45
RR
12.00
8,500   
50
30
6/15
15
0.50[2]
40
Notes: Setbacks from alleys shall be the same as otherwise applicable side or rear setbacks
[1] Single-family dwellings in the AG, RE, and E Zoning Districts may exceed the 40-foot building height limit by providing additional setbacks, as follows: for each 1 foot of additional height above 40 feet, structures shall be set back from all front, side, and rear property lines by two feet more than the otherwise required minimum setback. Structures in the AG, RE, or E Districts shall not exceed 50 feet in height.
[2] ISR shall be calculated by dividing the total area of all impervious surfaces on the site by the site’s base site area.
[3] A transition yard may also be required, which may increase the minimum setback shown in this table. See § 151.167(J).
[4] Any setback from a railroad right-of-way need not exceed 5 feet. A transition yard shall not be required in this instance.
 
 
Table 151.125(2): R-4A, R5, and R6 District Lot Size and Setback Standards (Conventional Residential Development)
Structure Type
Min. Lot Size
Minimum Setbacks[1][2] (Ft.) (§ 151.131(C))
Area (Sq. Ft.) (§ 151.131(A))
Width (Ft.) (§ 151.131(B))
Street
Side (Min/total)
Rear
Detached house
8,500
60
30
6/15
15
Duplex
12,500
85
30
10/23
15
Lot line
 
8,500
60
30
0/15
15
Multi-dwelling [3], multiplex, townhouse
First dwelling unit
8,500
60
30
6/15
15
Second dwelling unit
+5,000
+25
00
+4/08
0
each add’l unit
+3,000
+5
00
+1/02
0
Twinhouse
 
6,250
42.5
30
0/12
15
Note: Setbacks from alleys shall be the same as otherwise applicable side or rear setbacks
[1] A transition yard may also be required, which may increase the minimum setback shown in this table. See § 151.167(J).
[2] Any setback from a railroad right-of-way need not exceed 5 feet. A transition yard shall not be required in this instance.
[3] Not applicable in the R-4A District.
 
 
Table 151.125(3): Agricultural and Residential District Density and Dimensional Standards (Conservation Residential Development)
Zoning District
Maximum Density (Units per Acre) (§ 151.131(F))
Minimum Open Space Ratio (§ 151.131(G))
Cluster Bonus [1] (% over max. density)
Min. Open Space
50%
60%
70%
AG
0.20
0.40
5
10
15
RE
NA
N/A
NA
NA
NA
E
0.45
0.40
5
10
15
R1
0.80
0.30
5
10
15
R2
1.33
0.30
5
10
15
R3
2.00
0.30
5
10
15
R4
2.50
0.30
NA
NA
NA
R-4A
5.00
0.30
NA
NA
NA
R5
8.00
0.30
NA
NA
NA
R6
12.00
0.30
NA
NA
NA
RR
12.00
0.30
NA
NA
NA
[1] Cluster bonuses shall be given to developments in the AG, E, R-1, R-2, and R-3 Districts that set aside open space above the minimum requirements. A 5% density bonus (above the maximum number of units permitted by applicable density standards) is given to developments that provide at least 50% open space; a 10% density bonus is given to projects with a minimum of 60% open space; and 15% density bonus is given to projects with at least 70% open space.
 
   COMMENTARY:
 
Sample Density Calculations under Conservation Residential Development Option
Zoning District
Gross Land Area (Acres)
Floodplains, Wetlands, Water Bodies and ROW (Acres)
Net Site Area (Acres)
Maximum Density
Maximum Number of Dwelling Units By Open Space Amount
30% O.S.
40% O.S.
50% O.S.
60% O.S.
70% O.S.
AG
100
16
84
0.2
NA
16.8
17.64
18.48
19.32
AG
100
28.5
71.5
0.2
NA
14.3
15.02
15.73
16.45
E
100
16
84
0.45
NA
37.8
39.69
41.58
43.47
E
100
28.5
71.5
0.45
NA
32.18
33.78
35.39
37
R-1
100
16
84
0.8
67.2
67.2
70.56
73.92
77.28
R-1
100
28.5
71.5
0.8
57.2
57.2
60.06
62.92
65.78
R-2
100
16
84
1.33
111.7
111.7
117.3
122.9
128.5
R-2
100
28.5
71.5
1.33
95.1
95.1
99.85
104.6
109.4
R-3
100
16
84
2
168
168
176.4
184.8
193.2
R-3
100
28.5
71.5
2
143
143
150.2
157.3
164.5
 
 
Table 151.125(4): Residential District Density and Dimensional Standards
Non-Residential Development Allowed in Agricultural and Residential Districts
Zoning District
Floor Area Factor
Minimum Size
Setbacks[2][3] (Ft.) (§ 151.131(C)
ISR (Each Lot) (§ 151.131 (D))
Height (§ 151.131 (E))
Area (Sq. Ft.) (§ 151.131 (A))
Width (Ft.) (§ 151.131 (B))
Street
Side (Min/ Total)
Rear
AG
0.10
200,000
300
30
30/60
50
0.20
40[1]
RE
0.10
200,000
300
30
30/60
50
0.20
40[1]
E
0.15
80,000
190
30
19/48
19
0.30
40[1]
R1
0.20
80,000
190
30
19/48
19
0.35
40
R2
0.30
80,000
190
30
19/48
19
0.45
40
R3
0.30
80,000
190
30
19/48
19
0.50
40
R4
0.30
80,000
190
30
19/48
19
0.50
40
R-4A
0.30
80,000
190
30
19/48
19
0.50
40
R5
0.30
80,000
190
30
19/48
19
0.50
40
R6
0.30
80,000
190
30
19/48
19
0.50
45
RR
0.30
80,000
190
30
19/48
19
0.50
40
Setbacks from alleys shall be the same as otherwise applicable side or rear setbacks
[1] Structures in the AG, RE, and E Zoning Districts may exceed the 40-foot building height limit by providing additional setbacks, as follows: for each 1 foot of additional height above 40 feet, structures shall be set back from all front, side, and rear property lines by 2 feet more than the otherwise required minimum setback. Structures in the AG, RE, or E Districts shall not exceed 50 feet in height.
[2] A transition yard may also be required, which may increase the minimum setback shown in this table. See § 151.167(J).
[3] Any setback from a railroad right-of-way need not exceed 5 feet. A transition yard shall not be required in this instance.
 
 
Table 151.125(5): Non-Residential District Density and Dimensional Standards
Zoning District
Floor Area Factor
Minimum Size
Minimum Setbacks[4][5] (Ft.) (§ 151.131(C))
Max. ISR (Each Lot) (§ 151.131 (D))
Max Height (Ft.) (§ 151.131 (E))
Area (Sq. Ft.) (§ 151.131 (A))
Width (Ft.) (§ 151.131 (B))
Street
Side (Min/ Total)
Rear
GO
0.45
40,000
130
50
12
12
0.50
50 [1]
LC [3]
0.50
10,000
50
30
12 [2]
12
0.75
35
RC
0.20
20,000
100
50
10 [2]
10
0.75
35
GC
0.30
10,000
50
30
12 [2]
12
0.70 [6]
35
LI
0.45
40,000
130
50
20
20
0.60 [6]
50 [1]
II
0.45
40,000
130
50
20
20
0.60 [6]
50 [1]
OS
0.07
200,000
300
30
30
30
0.15
35
Setbacks from alleys shall be the same as otherwise applicable side or rear setbacks
[1] Structures in the GO, LI, and II Zoning Districts may exceed the 50-foot building height limit by providing additional setbacks, as follows: for each 1 foot of additional height above 50 feet, structures shall be set back from all front, side, and rear property lines by 2 feet more than the otherwise required minimum setback. Structures in the G0, LI, and II Districts shall not exceed 95 feet in height.
[2] Any one interior side setback may be waived if: (a) the development complies with all applicable fire codes; (b) adjacent to LC or less restrictive district; and (c) adequate access is provided to the rear of the property.
[3] The maximum gross floor area for any single use shall be 5,000 square feet. The maximum gross floor area for any single building shall be 10,000 square feet.
[4] A transition yard may also be required, which may increase the minimum setback shown in this table. See § 151.167(J).
[5] Any setback from a railroad right-of-way need not exceed 5 feet. A transition yard shall not be required in this instance.
[6] Consumer vehicle sales, truck sales, recreational vehicle sales, boat sales and other similar vehicle sales uses containing outdoor display, due to the need for increased parking, shall be permitted a maximum impervious surface ratio of 0.80.
 
(Ord., § 7.1, passed 10-13-2009; Ord. passed 8-14-2012; Ord. 19-1378, passed 9-10-2019)