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

§ 200-26 Purpose.

A. 
It is the intent of the R-4 District, as outlined by the Upper Uwchlan Township Comprehensive Plan, to provide the opportunity for high density residential development to occur in areas which are 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-4 District is designed to provide the opportunity for accommodating multifamily units at a density consistent with the character of the Township.
B. 
In the R-4 Residential District, the following regulations shall apply.

§ 200-27 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. 
Any use permitted by right in the R-3 District.
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) 
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]

§ 200-28 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 20,000 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 20,000 square feet.
(2) 
For a two-family detached or single-family semidetached dwelling, every lot shall have an area of not less than 15,000 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 15,000 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 on more than one tract.
(b) 
The gross density for development of multifamily dwellings shall not exceed four 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 four.
(c) 
The net density for development of multifamily dwellings shall not exceed six dwelling units per acre.
(4) 
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 75 feet.
(3) 
For multifamily dwellings, every tract containing multifamily development shall not be less than 500 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, there shall be a minimum of seventy-five-foot setback provided from the entire tract boundary within which no structure or parking shall be permitted.
(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 30% of the area of a lot, or tract in the case of a multifamily development, shall be covered by buildings/structures.
(2) 
Lot coverage. Not more than 45% of the area of a lot, or tract in the case of a multifamily development, 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.

§ 200-29 Community facilities.

The standards of § 200-23 shall also apply to the R-4 District.

§ 200-30 Site development standards.

The standards of § 200-24 shall also apply to the R-4 District.

§ 200-31 Design standards.

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