The R-20 Residential District is composed of
low-density residential areas of the Township and open space where
similar residential development is likely to occur. The purpose of
this district is to permit residential development at a low density;
to provide standards which will encourage the installation of public
facilities, the preservation of permanent public open space and architecturally
attractive building facades and landscaping; to exclude activities
of a commercial or industrial nature and any activities not compatible
with residential development; and to otherwise create conditions conducive
to carrying out these and other broad purposes of this chapter.
A.
Permitted principal uses.
(1)
Detached single-family dwelling.
(2)
Detached single-family dwelling under an open space preservation option (subject to the requirements of § 325-24.)
(3)
Semi-attached single-family dwelling under an open space preservation option (subject to the requirements of § 325-24).
(5)
House of worship.
(7)
Library.
(8)
Public parks and playgrounds.
B.
Permitted accessory uses. (See Article XXVII, Accessory Uses, for additional requirements.)
(1)
Private garage or carport.
(2)
Storage sheds, tool sheds and greenhouses.
(3)
Gazebos.
(4)
Decks and patios.
(5)
Swimming pool.
(6)
Energy conversion systems.
(7)
No-impact home-based business.
(8)
Child day-care home.
(9)
Child day-care center: permitted only as an accessory
use to a house of worship, public or private school.
(10)
Recreational vehicle on-lot parking and storage.
(11)
Satellite dishes.
C.
Uses by special exception. (See Article XXIX, Uses Permitted by Special Exception, for additional requirements.)
D.
Prohibited uses. Any use that is not a permitted use
or a use by special exception.
The chart of Area and Bulk Requirements for Permitted Uses in the R-20 District (chart for § 325-23) refers to the minimum area and bulk requirements for permitted uses for lots served by public water and sanitary sewer.[1] See § 325-119 for area and bulk requirements for lots without public water and/or sanitary sewer service.
A.
The yards shall be as required in the chart for permitted
uses in an R-20 District. Each yard that abuts a street on a corner
lot shall be considered a front yard.
B.
Lot coverage. Lot coverage refers to all buildings
and structures on the lot including accessory structures, which include
patios, walkways, decks, utility sheds, driveways and all impervious
material with the exception of swimming pools.
C.
Setbacks. Setbacks shall be as specified in the chart,
except that:
(1)
A front porch, including any roof gutters, eaves or
spouting, may extend 10 feet into the required front yard setback
in all residential zones, provided:
(2)
Chimneys which are an integral part of the dwelling
may extend 18 inches into any yard area.
(3)
Overhangs, eaves, roof gutters and spouting may extend
18 inches into any required yard area.
D.
Height. Heights shall not exceed those specified in
the chart. The following are exceptions to the maximum height:
(1)
Projections allowed: Chimneys, flagpoles, satellite
receiving dishes and other similar items with a width, depth or diameter
of three feet or less may extend above the height limit, as long as
they do not exceed five feet above the top of the highest point of
the roof. If they are greater than three feet in width, depth or diameter,
they are subject to the height limit.
(2)
Utility poles and public safety facilities are exempt
from the height limit.
E.
Landscaping and buffer yards. Landscaping and buffer yards shall be provided in accordance with the Subdivision and Land Development Ordinance (Chapter 289). Such buffer yards may be coterminous with any required yard in this district and, in case of conflict, the larger yard requirements shall apply.
[1]
Editor's Note: Said chart is included at the end of this chapter.
A.
On sites of six contiguous acres or more, the Township
shall provide the option of cluster-style development in the R-20
District for the purpose of providing open space and protecting natural
resources. These provisions are designed to:
(1)
Provide an effective means for identifying, organizing
and maintaining open space.
(2)
Provide for active and passive recreation areas to
complement existing open space and recreational uses and/or to meet
the demand for such areas by future residents.
(3)
Preserve natural environmental resources by:
(a)
Encouraging the preservation of floodplains
and thus supplementing Floodplain District regulations.
(b)
Limiting the development of steep slopes.
(c)
Protecting the quality of existing watercourses,
ponds and other water bodies.
(d)
Avoiding the disruption of woodland and/or individual
trees.
(e)
Maintaining and/or enhancing the character of
the site relative to its aesthetic and recreational qualities and
characteristics.
B.
Net acreage determination. Determination of the land
available on a tract for open space development shall be as follows:
C.
Density regulations. The maximum number of lots in
an open space preservation district shall be as follows:
