The intent of the R-3 High Density Residential District is to:
A. 
Provide for a variety of carefully designed housing types at medium high densities.
B. 
Make sure that varied housing types are compatible with any existing single-family detached houses.
C. 
Make sure that the street system of the Borough and other community facilities and services are fully able to handle moderately dense growth in an area.
D. 
Work to encourage affordable housing, especially for young families and senior citizens.
[Amended 8-9-2012 by Ord. No. 2170, approved 8-9-2012]
In the R-3 District, the following uses shall be permitted by right:
A. 
Single-family detached dwellings.
B. 
Crop farming.
C. 
The following uses if both public water and public sewer service are provided:
(1) 
Single-family semidetached dwellings.
(2) 
Townhouses (single-family attached dwellings), subject to compliance with § 255-199A(17).
(3) 
Two-family detached dwellings.
(4) 
Garden apartment, subject to compliance with § 255-199A(17).
D. 
Forestry.
E. 
Group home, within a dwelling type permitted by this district, subject to compliance with § 255-199A(18).
F. 
Community gardens, subject to compliance with § 255-199A(53).
[Added 7-11-2013 by Ord. No. 2182, approved 7-11-2013]
Only the following accessory uses shall be permitted:
A. 
Residential accessory uses, subject to compliance with § 255-200D(12).
B. 
Private swimming pools and tennis courts, subject to compliance with § 255-199A(34)(a) and (c).
C. 
Child nursery/day-care center as an accessory use to a dwelling, subject to compliance with § 255-200D(8).
D. 
Home occupations, subject to compliance with § 255-200D(5).
E. 
Community gardens, subject to compliance with § 255-199A(53).
[Added 7-11-2013 by Ord. No. 2182, approved 7-11-2013]
The following uses may be permitted as a special exception when authorized by the Zoning Hearing Board, subject to § 255-197 of this chapter:
A. 
Semiprivate recreational facilities, subject to compliance with § 255-199A(34).
B. 
Places of worship, subject to compliance with § 255-199A(32).
C. 
Public utility uses, such as electric substations, subject to compliance with § 255-199A(33).
D. 
Mobile/manufactured home park within the requirements listed for such use in § 255-199A(26) and not within the requirements of this district, subject to compliance with § 255-199A(25).
E. 
Mobile home/manufactured home.
A. 
The regulations in Table V-1 shall be observed:
Table V-1
Area and Bulk Regulations for the R-3 High Density Residential District
Minimum Regulations
Single-
Family Detached
Single-
Family Semi-
detached
Townhouse
Two-
Family Detached
Garden Apart-
ment
Other Permitted Uses
Minimum average lot area/DU based upon gross acreage (sq. ft.)
4,000
3,600
3,000
3,000
3,000
10,000
Minimum lot area (sq. ft.)
4,0001
3,600
2,000
7,200
20,000
10,000
Minimum front yard setback (ft.)
25
25
25
25
25
25
Minimum lot width at the minimum building setback line (ft.)
601
35/DU
20/DU, except 28/DU if garage doors for 2 or more motor vehicles face onto the front of the townhouse lot
30/DU
200
100
Minimum rear yard for principal buildings (ft.)
25
25
25
25
25
25
Minimum rear yard for accessory structures and uses (ft.)
5
5
5
5
5
5
Side yards for principal buildings, where required (ft.):
(See § 255-187 for multiple frontage lots.)
Total (if 2 required)
12
N/A
N/A
20
50
50
Each side (where 2 required)
6
N/A
N/A
10
25
25
1 side (where only 1 required)
N/A
10
10
N/A
N/A
N/A
Minimum side yards for accessory structures and uses (ft.)
5
52
0
5
52
5
Maximum building coverage
35%
35%
50%
50%
50%
35%
Maximum impervious coverage
60%
60%
65%
65%
75%
75%
Maximum building height (ft.)
35
35
35
35
35
35
Key:
N/A = Not Applicable
DU = Dwelling Unit
Notes:
1
See § 255-194 if both public water and public sewer are not provided.
2
Except along shared (interior) lot line, where zero feet shall apply.
B. 
(Reserved)[1]
[1]
Editor's Note: Former Subsection B, regarding garden apartments, was repealed 7-14-2011 by Ord. No. 2152, approved 7-14-2011.
Any new principal building including one or more dwelling units shall be set back the following distances from the following features:
A. 
From the zoning boundary of an industrial district: 35 feet.
[Amended 7-14-2011 by Ord. No. 2152, approved 7-14-2011]
B. 
From the existing right-of-way of an expressway: 70 feet.
C. 
From the existing right-of-way of an arterial street: 40 feet.