Consistent with the general purposes of this chapter and the goals and objectives of the Lower Allen Township Comprehensive Plan, the specific intent of this article is to preserve the integrity of established single-family residential communities and future communities. Due to both the age and design of these communities, unique and flexible standards and regulations are proposed to bring the majority of dwelling units into conformance with this chapter. It is the purpose of this district to provide these standards and regulations.
The permitted uses are as follows:
A. 
Single-family detached dwellings.
B. 
Family care facility.
C. 
Family day care facility in accordance with § 220-162.
D. 
Accessory dwellings in accordance with § 220-149.
E. 
Home occupations in accordance with § 220-165.
F. 
Public parks, public playgrounds, public recreation areas and public camping facilities.
G. 
Municipal buildings, public libraries and public museums.
H. 
Places of worship, including: one accessory residential unit; and accessory preschool uses.
I. 
Cemeteries.
J. 
K-12 public and private schools, including accessory preschool uses.
K. 
Utility facilities, where operation requirements necessitate location within the district, in accordance with § 220-180.
L. 
Signs, when erected and maintained in accordance with Article XXV herein.
M. 
Accessory uses and structures on the same lot with and customarily incidental to any of the above-permitted uses in accordance with § 220-150.
A. 
No principal building shall be erected to a height in excess of 35 feet.
B. 
No accessory structure shall be erected to a height in excess of 25 feet.
A. 
With public water and public sewer (public or private utility):
(1) 
The maximum permitted residential density shall be four dwelling units per gross acre, excluding existing dedicated rights-of-way.
(2) 
The minimum lot area shall be 7,200 square feet.
(3) 
The minimum lot width shall be not less than 50 feet at the dedicated right-of-way line.
B. 
With on-lot water supply and/or sewage disposal systems:
(1) 
The maximum permitted residential density shall be one dwelling unit per gross acre, excluding existing dedicated rights-of-way.
(2) 
There shall be no minimum lot area. Lot area shall be based upon required setbacks, impervious coverage, parking and loading/unloading, on-lot water supply and sewage disposal system requirements, floodplains/wetlands, steep slope requirements, woodland preservation and other applicable criteria as set forth in this chapter.
(3) 
The minimum lot width shall be not less than 50 feet at the dedicated right-of-way line.
Impervious coverage shall not exceed 50%.
A. 
Yards of the following minimum depths shall be provided for residential uses:
(1) 
Minimum front yard depth: 30 feet. On a corner lot, two front yards shall be provided. If the abutting street right-of-way width is less than 50 feet, front yard setback is measured in accordance with § 220-212A. Where existing principal buildings in the same block have lawfully nonconforming front yard setbacks of less than 30 feet, an average setback may be used in accordance with § 220-212B.
(2) 
Minimum side yards shall total no less than 15 feet, with no one side yard less than five feet in width. On a corner lot, two side yards shall be provided along the interior lot lines.
(3) 
The minimum rear yard depth shall be 25 feet. On a corner lot, a rear yard shall not be required.
B. 
Yards of the following minimum depths shall be provided for nonresidential principal buildings:
(1) 
Minimum front yard depth: 30 feet. On multiple frontage lots, a front yard shall be provided abutting each street frontage. If the abutting street right-of-way width is less than 50 feet, front yard setback is measured in accordance with § 220-212A.
(2) 
Minimum side yard: 15 feet.
(3) 
Minimum side yard for a nonresidential principal building abutting a residential use: 50 feet.
(4) 
Minimum rear yard. 35 feet.
All uses must comply with performance standards as set forth within Article XIX herein.
Off-street parking shall be provided in accordance with Article XXIV.