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Township of Allegheny, PA
Westmoreland County
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Table of Contents
Table of Contents
Code
New Laws (5) Index
The purpose of this district is to provide opportunities for establishing mobile home parks in appropriate locations in the Township and allowing for a mix of single-family and two-family dwellings in areas which are served or have the potential to be served by public water and are located on the regional transportation network close to shopping and community services while protecting the Township from congestion and uncoordinated growth.
In the R3 General Residential District, the following uses are authorized:
A. 
Permitted uses.
(1) 
Principal uses.
(a) 
Single-family dwellings.
(b) 
Two-family dwellings.
(c) 
Townhouses and garden apartments.
(d) 
Schools.
(e) 
Churches.
(f) 
Convent, monastery, rectory or parish house occupied by no more than 10 persons.
(g) 
Essential services.
(h) 
Conservation developments, subject to Article XIII.
(i) 
Oil and gas drilling, subject to the zoning certificate required by § 250-158A(5).
(2) 
Accessory uses.
(a) 
Signs, subject to Article XVII.
(b) 
Off-street parking and loading, subject to Article XVI.
(c) 
Private residential swimming pools or tennis courts subject to § 250-115C.
(d) 
Fences, subject to § 250-115C.
(e) 
Gardening as an avocation, including private, noncommercial greenhouses.
(f) 
Keeping of domestic pets.
(g) 
Storage of recreational vehicles owned or leased by the residents of the premises.
(h) 
Other accessory uses as customarily incidental to and on the same lot with any permitted use, conditional use or use by special exception authorized in this district.
(i) 
Home occupations, subject to § 250-110A(14).
B. 
Conditional uses.
(1) 
Principal uses.
(a) 
Conversion apartments, subject to § 250-110A(7).
(b) 
Clinics, nursing homes or hospitals, subject to § 250-110A(16).
(c) 
Mobile home parks, subject to § 250-110A(21).
(d) 
Planned residential developments.
(e) 
Golf courses and country clubs, subject to § 250-110A(10).
(f) 
Public recreation, subject to § 250-110A(30).
(g) 
Noncommercial recreation, subject to § 250-110A(30).
(h) 
Public buildings, subject to § 250-110A(4).
(i) 
Firehouses, subject to § 250-110A(4).
(j) 
Planned retirement complex.
(k) 
Facilities housing public emergency services.
(2) 
Accessory uses.
(a) 
Bed-and-breakfast, subject to § 250-110A(45).
C. 
Uses by special exception.
(1) 
Principal uses.
(a) 
Day-care center or nursery school in a church or school, subject to § 250-110A(8).
(b) 
Group care facility, personal care boarding home or transitional dwelling, subject to § 250-110A(11).
(c) 
Temporary use or structure, other than a temporary dwelling or construction trailer, subject to § 250-110A(39).
In the R3 General Residential District, all uses shall be subject to the following regulations, except as they may be modified by the express standards and criteria for the specific conditional uses or uses by special exception contained in Article XIV:
A. 
Minimum lot size:
(1) 
Single-family dwelling:
(a) 
With public sewers: 14,500 square feet.
(b) 
All others: 30,000 square feet.
(2) 
Two-family dwelling: 20,000 square feet.
(3) 
Townhouses and garden apartments: one acre.
(4) 
All other uses: one acre.
B. 
Minimum lot width:
(1) 
Single- and two-family dwellings:
(a) 
With public sewers: 100 feet.
(b) 
All others: 100 feet.
(2) 
All other uses: 150 feet.
C. 
Maximum lot coverage: 25%.
D. 
Minimum front yard: 35 feet.
E. 
Minimum rear yard:
(1) 
Principal structures: 40 feet.
(2) 
All accessory structures: 15 feet.
(3) 
Accessory structures 120 square feet or less: five feet.
F. 
Minimum side yard:
(1) 
Single-family dwellings: 15 feet each side.
(2) 
Two-family dwellings: 15 feet each side.
(3) 
All other uses: 15 feet each side.
(4) 
Accessory structures 120 square feet or less: five feet.
(5) 
Townhouse dwelling, interior lot line: zero feet.
G. 
Special yard requirements: See § 250-115.
H. 
Permitted projections into required yards: See § 250-116.
I. 
Maximum height:
(1) 
All principal structures: 35 feet and three stories.
(2) 
Single-family, two-family, townhouse, garden apartment: 35 feet and 2 1/2 stories.
(3) 
All accessory structures: 15 feet and one story.
J. 
Height exceptions: See § 250-117.
K. 
Maximum dwelling unit density:
(1) 
Townhouses and garden apartments: 12 units per acre.
L. 
Planned retirement complex lot requirements:
(1) 
Minimum lot size: 50 acres.
(2) 
Maximum buildings: not to exceed 15 residences per acre.
(3) 
Maximum lot coverage: 25%.
(4) 
Maximum impervious surface coverage: 35%.
(5) 
Front yard: 100 feet.
(6) 
Side yard: 100 feet.
(7) 
Rear yard: 100 feet.
(8) 
Notwithstanding the foregoing, no building may be closer than 100 feet to any property line adjoining the R1 District.
(9) 
Parking shall be provided as set forth in Article XVI, §§ 250-127 to 250-130. Further, off-street parking and aisles shall be prohibited within 75 feet of adjoining property lines, except for the driveway access to a street.
Parking and loading: See Article XVII.
Signs: See Article XVII.
Screening and landscaping: See § 250-113.
Steep slope controls: See § 250-114.
Traffic study: See § 250-125.