In expansion of the declaration of legislative intent and community development objectives contained in Article
I of this chapter, the specific intent of this district is:
A. To preserve and build upon the strength of the Lower
Frederick's villages as the core of the Township, both in terms of
uses and densities/intensities of those uses.
B. To provide for the Township's fair share of population
growth, by permitting medium-density development and a variety of
detached and semidetached dwelling types.
C. To provide standards that permit orderly and efficient
medium-density development while preserving and protecting adjacent
areas from any negative impacts.
D. To promote the sense of neighborhood and promote community
identity.
E. To encourage walking between buildings, and encourage
automobile trips that serve more than one purpose, thereby reducing
traffic volume.
F. To provide open space and recreation facilities for
the benefit of residents of medium-density developments.
G. To further the general welfare by extending greater
opportunities for better and more affordable housing to present and
prospective residents of Lower Frederick Township.
H. To promote the objectives and policies of the Township
Comprehensive Plan.
In the R-3 Medium-Density Residential District,
a building may be erected, altered or used, and a lot may be used
or occupied, for any of the following uses and no other:
A. Any mix of the following residential dwelling types with density based on the standards listed below. Maximum tract density shall be subject to further modification by the environmental adjustment factors in §
170-41 of this chapter, as determined by the formula in §
170-41B(2) of this chapter.
(1) Single-family detached dwelling: three dwelling units
per acre.
(2) Lot line house dwelling: four dwelling units per acre.
(3) Village house dwelling: four dwelling units per acre.
(4) Patio house dwelling: four dwelling units per acre.
(5) Single-family semidetached dwelling: four dwelling
units per acre.
(6) Two-family detached dwelling: four dwelling units
per acre.
B. Open space uses, primarily passive in nature, including
wildlife sanctuary, forest preserve, nature center, and similar uses.
C. Game farm, fish hatchery, hunting or fishing preserve;
or similar uses designed for the protection or propagation of wildlife.
D. Parks and recreation areas in compliance with the standards and criteria of Article
XIII, Institutional and Recreational Overlay District, when approved by the Board of Supervisors.
E. Institutions, by conditional use and in compliance with the standards and criteria of Article
XIII, Institutional and Recreational Overlay District, when approved by the Board of Supervisors.
F. Government uses, public utility facility.
G. Accessory uses in compliance with §
170-24 of this chapter, including home occupations in compliance with §
170-25 of this chapter.
H. Residential conversion to not more than two dwelling
units of any single-family detached dwelling that existed as of the
date of adoption of this chapter, provided that the dimensional and
development regulations for a two-family detached dwelling and all
other zoning requirements are met.
[Amended 10-3-2023 by Ord. No. 2023-03]
A. Only one principal use shall be allowed on a lot.
B. Minimum buildable area for each building lot shall be equal to the
minimum lot size specified in Table 170-56C below or 21,780 square
feet, whichever is smaller.
C. The minimum lot area, minimum lot width, maximum building coverage,
maximum impervious surface coverage, and minimum front, side and rear
yard setbacks required for each permitted use in the R-3 Medium-Density
Residential District are as prescribed in Table 170-56C herein.
Table 170-56C
Dimensional Regulations: R-3 Medium-Density Residential District
|
---|
Dwelling/Use Type
|
Minimum Lot Area
(square feet)
|
Minimum Lot Width
(feet)
|
Maximum Building Coverage
(%)
|
Maximum Impervious Surface Coverage
(% of lot area)
|
Minimum Front Yard
(feet)
|
Minimum Side Yard
(feet)
|
Minimum Rear Yard
(feet)
|
---|
Single-family detached
|
10,000
|
80
|
14
|
20
|
25
|
15
|
30
|
Lot line house
|
7,000
|
60
|
30
|
40
|
25
|
30 (one only)
|
30
|
Village house
|
6,200
|
55
|
20
|
30
|
15
|
10
|
30
|
Patio house
|
4,500
|
45
|
30
|
35
|
25
|
10
|
0
|
Single-family semidetached
|
5,000 per du
|
40 per du
|
25
|
35
|
25
|
20 (one only)
|
30
|
Two-family detached
|
5,000 per du
|
40 per du
|
20
|
30
|
25
|
15
|
30
|
All other uses (except parks, recreation areas, and institutions)
|
43,560 (1 acre)
|
150
|
20
|
50
|
30
|
20
|
30
|
D. Access to a public street. As an exception to the requirements of §
170-11 of this chapter, each and every lot in the R-3 District shall abut a public street at the ultimate right-of-way line for at least 50 feet or the minimum lot width requirement for the specific dwelling/use type, whichever is smaller, and said frontage must be usable for purposes of ingress and egress to the lot.
E. Additional setback regulations.
(1) A lot with multiple street frontages shall have a front yard setback
along each frontage.
(2) If a standard building line has been established by previous development
on adjoining streets, and it is less than the minimum front yard setback
required for that dwelling type as set forth above, the minimum front
yard setback for a new development shall be the average front yard
setback of existing principal buildings within 500 feet to either
side of the proposed development.
(3) Lot line house. Only one side yard is required for lot line houses.
Unless a side yard having a minimum setback of five feet is provided
for the second side yard, a five-foot-wide maintenance easement shall
be provided along the side lot line. Minimum distance between a lot
line house and another dwelling shall be 30 feet.
(4) Two side yard setbacks are required for single-family and two-family
detached dwellings, and one side yard setback is required for single-family
and two-family semidetached dwellings.
F. Zoning district boundary setback. A minimum setback of 50 feet is required between any semidetached principal building in the R-3 Medium-Density Residential District and any Township boundary or any boundary of a residential zoning district with a maximum permitted density of two units per acre or lower. This setback may be part of a required yard area and shall include landscaping and/or berming according to the provisions of Chapter
145, Subdivision and Land Development.
G. Unless specifically regulated elsewhere in this chapter, the maximum height for all accessory buildings and structures is 15 feet and is 35 feet for all other buildings and structures. (See §
170-24 and §
170-32 for additional height regulations.)
H. Subdivision and land development. All applicants seeking subdivision and/or land development approval shall comply with and follow the requirements of §
170-41, Environmental adjustment factors, to determine the development capacity of the site.