A. 
It is the intent of the R-1 District, as outlined by the Upper Uwchlan Township Comprehensive Plan, to support the preservation of critical natural resources, such as streams, floodplains, wet soils, variable groundwater yield areas, and conditionally suitable for on-lot sewage disposal systems; to encourage continued agricultural, open space and conservation uses; to provide for continued low density residential development that is compatible with established use patterns; and to encourage and promote phased development throughout the Township by permitting low density residential uses in the R-1 District until other areas of the Township more accessible to adequate services and transportation are fully developed in medium and high density residential uses. The R-1 District establishes maximum density standards which provide for low density residential uses and promote the conservation of surface water and groundwater supplies, soils for on-lot sewage disposal systems, and the control of soil erosion and flooding.
B. 
In the R-1 Residential District, the following regulations shall apply.
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. 
Single-family detached dwelling and group home.
[Amended 3-19-2018 by Ord. No. 2018-05]
B. 
Agriculture (see § 200-67).
C. 
Any one of the following uses when authorized as a conditional use by the Board of Supervisors subject to § 200-116 of this chapter:
(1) 
Nursery, excluding retail sales and landscaping business, provided that they are situated no less than 100 feet from an adjoining property line or public right-of-way.
(2) 
Educational or religious use.
(3) 
Recreation uses, provided that no commercial activity or use such as amusement park, driving ranges, pitch and putt or miniature golf course, or similar use customarily carried on as a business, shall be permitted (see § 200-68).
(4) 
Bed-and-breakfast [see § 200-62B(5)].
(5) 
(Reserved)[1]
[1]
Editor’s Note: Former Subsection C(5) of the 2006 Code, regarding group homes, was repealed 3-19-2018 by Ord. No. 2018-05.
(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]
(7) 
Short-term rental subject to the criteria in § 200-72.3.
[Added 9-16-2024 by Ord. No. 2024-02]
D. 
Any one of the following uses when authorized as a special exception by the Zoning Hearing Board, subject to Article XX of this chapter:
(1) 
Municipal or public uses; governmental or public utility building or uses.
(2) 
Cemetery.
(3) 
Kennels.
(4) 
Home occupations [see § 200-62B(4)].
E. 
The following accessory uses shall be permitted provided that they are incidental to any of the foregoing permitted uses:
(1) 
Customary residential accessory uses.
(2) 
Customary agricultural accessory uses.
(3) 
Private swimming pools (see § 200-88C).
F. 
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]
G. 
Group homes.
[Added at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
A. 
Minimum lot area. Every lot shall have an area of not less than two acres, 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 two acres.
B. 
Minimum lot width. Every lot shall be not less than 200 feet in width.
C. 
Yard regulations. The following yards shall be provided:
(1) 
A front yard of not less than 75 feet shall be provided on each lot.
(2) 
Two side yards of not less than 30 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) 
There shall be a 100-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 10% of the area of a lot shall be covered by buildings/structures.
(2) 
Lot coverage. Not more than 15% of the area of a lot shall be covered by buildings/structures and other impervious materials, provided that uses permitted in § 200-13C(2) and E(1) may increase the lot coverage to 40%.
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 situated within the front yard, nor within 20 feet of any side or rear lot line.
For additional regulations applicable to this district, see Article XIV, Supplemental Land Use Regulations, Article XV, Common Regulations, and Article XVI, Signs.