Township of Upper Uwchlan, PA
Chester County
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Table of Contents
Table of Contents

§ 200-20 Purpose.

A. 
It is the intent of the R-3 District, as outlined by the Upper Uwchlan Township Comprehensive Plan, to encourage medium to high density residential development which is compatible with established use patterns; located in areas of the Township which contain environmental features generally suitable for such development; and accessible to transportation systems and community facilities appropriate for such development. The R-3 District is designed:
(1) 
To provide a transition between areas of low and high density residential; and
(2) 
To supply additional flexibility and opportunity for accommodating multifamily units at a lower density than permitted in other zoning districts of the Township.
B. 
In the R-3 Residential District, the following regulations shall apply.

§ 200-21 Use regulations.

A building may be erected, altered or used, and a lot may be used or occupied, for any of the following purposes, and no other:
A. 
In addition to those uses permitted by right in the R-1 District, the following uses shall by permitted:
(1) 
Single-family semidetached dwelling (twin).
(2) 
Two-family detached dwelling (duplex).
B. 
The following uses when authorized as a conditional use by the Board of Supervisors subject to § 200-116 of this chapter:
(1) 
Multifamily dwellings.
(2) 
Mobile home park.
(3) 
Nursing or convalescent home (see § 200-66).
(4) 
Cemetery.
(5) 
Municipal or public uses; governmental or public utility building or use.
(6) 
Adaptive reuse for historic preservation where indicated as a use subject to approval by the Board of Supervisors as a conditional use in accordance with § 200-72.1.
[Added 9-19-2016 by Ord. No. 2016-07]
C. 
Any accessory use permitted in the R-1 District.
D. 
Adaptive reuse for historic preservation where indicated as a use by right in accordance with § 200-72.1.
[Added 9-19-2016 by Ord. No. 2016-07]

§ 200-22 Area and bulk regulations.

A. 
Minimum lot area.
(1) 
For a single-family detached dwelling, every lot shall have an area of not less than 30,000 square feet, provided that, in the case of an interior lot, any right-of-way or accessway connecting such lot to a road or street shall be in addition to the minimum lot area of 30,000 square feet.
(2) 
For a two-family detached or single-family semidetached dwelling, every lot shall have an area of not less than 20,000 square feet per dwelling unit, provided that, in the case of an interior lot, any right-of-way or accessway connecting such lot to a road or street shall be in addition to the minimum lot area of 20,000 square feet per dwelling unit.
(3) 
For multifamily dwellings, every lot or tract containing a multifamily development shall meet the following specifications:
(a) 
The minimum tract size for multifamily development shall be not less than 20 acres. Lots must be contiguous and cannot straddle an existing roadway in the case of proposed development of more than one tract.
(b) 
The gross density for development of multifamily dwellings shall not exceed two dwelling units per developable acre once any slope over 25% and floodplain areas on the tract are removed from the calculations. The total number of dwelling units permitted shall be computed by subtracting those lands containing slope in excess of 25% and floodplain as defined by this chapter, from the gross tract area and multiplying by two.
(c) 
The net density for development shall not exceed four dwelling units per acre.
(4) 
For a mobile home park, every lot or tract shall meet the following specifications:
(a) 
The minimum tract size for a mobile home park shall be not less than 10 acres.
(b) 
The gross density for a mobile home park shall not exceed four dwelling units per acre.
(c) 
The minimum lot size for an individual mobile home within a mobile home park shall be 5,000 square feet.
(5) 
For nonresidential uses and single-family detached dwellings without both centralized sewer and public water, the area and bulk regulations of the R-2 District shall apply.
B. 
Minimum lot width.
(1) 
For a single-family detached dwelling, every lot shall not be less than 100 feet in width.
(2) 
For a two-family detached or single-family semidetached dwelling, every lot shall have an average aggregate lot width for two dwelling units of 100 feet.
(3) 
For multifamily dwellings, every tract containing multifamily development shall not be less than 500 feet in width.
(4) 
For a mobile home park, every tract shall not be less than 300 feet in width.
C. 
Yard regulations. The following yards shall be provided:
(1) 
A front yard of not less than 50 feet shall be provided on each lot.
(2) 
Two side yards of not less than 25 feet each shall be provided on each lot.
(3) 
A rear yard of not less than 40 feet shall be provided on each lot, unless the lot is a reverse frontage lot, in which case the requirements of § 200-75B shall apply.
(4) 
For multifamily developments and mobile home parks, there shall be a minimum of seventy-five-foot setback provided from the entire tract boundary within which no structure or parking lot shall be permitted. There shall be a minimum of 25 feet between mobile homes.
(5) 
There shall be a one-hundred-foot setback from the ultimate right-of-way of PA Route 100 regardless of which yard abuts the highway.
D. 
Coverage regulations.
(1) 
Building coverage. Not more than 25% of the area of a lot, or tract in the case of multifamily development or mobile home park, shall be covered by buildings/structures.
(2) 
Lot coverage. Not more than 40% of the area of a lot, or in the case of multifamily development or mobile home park, shall be covered by buildings/structures and other impervious materials.
E. 
Height restrictions. No structures or principal buildings shall exceed 35 feet in height. No accessory building, other than an accessory farm building, shall exceed 25 feet in height.
F. 
Accessory buildings/structures. No accessory buildings or structures shall be located within the front yard, nor within 10 feet of any side or rear lot line.

§ 200-23 Community facilities for other than single-family detached dwellings.

A. 
Sewer and water service. Centralized sewer and public water are required for uses permitted in this district. Without public or centralized sewer and public water, the density shall be one unit per one gross acre. Residential developments shall submit information as required by the Board of Supervisors that adequate and safe water and sewer is available to service the proposed development without causing adverse environmental damage or negatively affecting adjacent property owners.
B. 
Open space (required for multifamily development and mobile home park). Not less than 30% of the total area of the tract shall be designated as and used exclusively for common open space. The design, ownership, maintenance, and preservation of common open space and facilities shall be in accordance with § 200-69 of this chapter.

§ 200-24 Site development standards.

The following additional site development standards shall apply to multifamily developments:
A. 
Building separation. The minimum horizontal distance between separate buildings shall be as follows:
(1) 
Between facing walls within 25° of being parallel, 75 feet if either wall contains windows.
(2) 
In all other cases of facing walls, 60 feet.
(3) 
Where walls do not face each other, 25 feet between building corners.
B. 
Courts.
(1) 
At least 25% of courts formed by the arrangement of more than one building shall be open space not occupied by parking areas or other uses; court areas to be measured on a straight line between building corners.
(2) 
A separation distance shall be created of no less than 200 feet between courts, measured from building corners forming the perimeter of courts.
C. 
Exterior walls. Exterior walls shall be faced with maintenance-free material other than cinderblock, plain concrete block or concrete poured in place.
D. 
Rear of buildings. The rear of buildings shall not face, or be within 25° of being parallel to, any public road.
E. 
Attached building (townhouse).
(1) 
The arrangement of two or more buildings in clusters as seen in front elevation or an elevation normal thereto shall have a maximum horizontal dimension of 200 feet if each building is variously oriented. The maximum horizontal dimension of clusters oriented in the same direction shall be 275 feet.
(2) 
There shall be no more than five units to any single building and no more than three buildings to any court.
(3) 
Buildings shall be arranged in a maximum of two rows within 25° of being parallel. Arrangement of buildings in three or more rows, whether with long or short walls facing, will not be permitted.
(4) 
Exterior walls greater than 80 feet in length will not be approved and exterior walls colinear with or parallel to fire walls, at least five feet in horizontal length and of full height, may be required to assure offset or variety of exterior surfaces of both.
(5) 
Use of mansards, gables and variations of color, texture or of ridge line height or orientation may be required to provide architectural diversity and individuality for the various building subdivisions or sets of them.
F. 
Other multifamily buildings and apartment buildings.
(1) 
Apartment buildings and other multifamily buildings shall have a maximum exterior wall perimeter at any level of no more than 960 feet, no straight line segment of which may be longer than 120 feet.
(2) 
Apartment buildings and other multifamily buildings shall be no more than 35 feet in height except on recommendation of the Planning Commission and approval by the Board of Supervisors where it can be shown that the top of the buildings will not alter the visible horizon as seen from a public road.
G. 
Accessory uses. No outdoor swimming pool, tennis court or similar facility shall be located closer than 100 feet to any adjacent residential property.
H. 
Building standards. Building standards of the Township, state, federal and local regulatory agencies shall be complied with prior to the occupancy and the issuance of any certificate of occupancy.
I. 
Scenic preservation. Buildings shall be located so as not to unreasonably dominate hilltops or monopolize views of the rural countryside to the detriment of adjacent landowners. Preservation of unique natural and man-made features, including but not limited to tree masses, historic settings, and stream valleys, shall be accomplished wherever reasonably practicable.

§ 200-25 Design standards.

For additional regulations applicable to this district, see Article XIV, Supplemental Land Use Regulations, Article XV, Common Regulations, and Article XVI, Signs.