[Amended 1-15-2004 by Ord. No. 984]
The purpose of this article is to protect, maintain and preserve the existing medium density development in the district; to provide for adequate standards and open spaces to assure that proposed development will produce a desirable living environment and not create excessive traffic; and to provide for continued development with a variety of uses, including townhouse, two-family and multifamily dwelling apartments not to exceed four units.
[Amended 1-15-2004 by Ord. No. 984]
In the R-3 Residential District, land, building or premises shall be used by right only for one or more of the following uses:
A. 
All uses permitted by right in the R-2 Residential District.
B. 
Single-family attached dwelling (townhouse).
C. 
Two-family detached dwelling (duplex).
[Added 1-17-2013 by Ord. No. 1101[1]]
[1]
Editor's Note: This ordinance also provided for the redesignation of former Subsections C and D as Subsections D and E, respectively.
D. 
Multifamily dwelling (apartments), maximum of four units per building.
E. 
Above listed permitted uses, used as a community residence facility, mentally retarded.
The following uses shall be permitted as a special exception when authorized by the Zoning Hearing Board. All special exceptions are subject to the provisions of Article XVII of this chapter.
A. 
Community residence facilities, family-based, as permitted by special exception in the R-2 Residential District.
B. 
(Reserved)[1]
[1]
Editor's Note: Former Subsection B, permitting conversion as permitted in the R-1 District, was repealed 9-17-2009 by Ord. No. 1065.
C. 
Church or other place of worship, school, day-care center or similar use, as determined by the Zoning Hearing Board.
The following accessory uses shall be permitted:
A. 
All accessory uses permitted in the R-1 Residential District.
B. 
Laundry, contained within the building, for the exclusive use of the residents of an apartment house.
C. 
Recreational facilities, for the exclusive use of the residents of an apartment building or their guests.
D. 
Refuse collection center for apartment buildings, which shall be accessible to a public street and screened from public view by a wall, fence or hedge.
E. 
Any accessory use on the same lot with and customarily incidental to any of the uses permitted above and not detrimental to the neighborhood.
A. 
Single-family detached dwellings.
(1) 
Lot area. A lot area of not less than 4,000 square feet shall be provided for every dwelling hereafter erected.
(2) 
Lot width. The lot for each dwelling hereafter erected shall have a width at the building line of not less than 40 feet.
(3) 
Minimum yard requirements.
(a) 
Front yard. There shall be a front yard the depth of which shall be not less than 15 feet, unless existing buildings on abutting lot(s) have greater front yards. In such cases, the required front yard shall be not less than the front yard of one of the existing buildings.
(b) 
Side yards. There shall be two side yards, one on either side of each dwelling, which shall have an aggregate width of not less than 18 feet, and neither side yard shall be less than eight feet.
(c) 
Rear yard. There shall be a rear yard which shall be not less than 15 feet in depth.
(d) 
Corner lot setbacks.
[Amended 8-15-1996 by Ord. No. 903]
[1] 
In case of a corner lot where the right-of-way dimension of both streets is identical, a front yard setback of not less than 15 feet shall be required from the street line fronted by the shortest lot dimension, and a front yard setback of not less than 10 feet shall be required from the street line fronted by the longest dimension. The yard opposite the shortest lot dimension shall comply with rear yard setback requirements, and the yard opposite the long lot dimension shall comply with the minimum side yard setback requirements.
[2] 
In case of a corner lot where the right-of-way dimension of both streets is not identical, a front yard setback of 15 feet shall be required from the street with the widest right-of-way dimension, and a front yard setback of 10 feet shall be required from the street with the narrowest right-of-way dimension. The yard opposite the street with the widest right-of-way shall comply with rear yard setback requirements, and the yard opposite the street with the narrowest right-of-way dimension shall comply with the minimum side yard setback requirements.
[3] 
In the case of a corner lot where the lot dimensions along the streets are identical and the right-of-way dimension of both streets is identical, the property owner shall select one side abutting the street to be the front yard, consistent with other uses prevailing on the same block.
(4) 
Building coverage. The aggregate area of all buildings on a lot shall not exceed 30% of the lot area.
(5) 
Height regulation. No building shall have a height exceeding 35 feet with a maximum of three stories above grade.
(6) 
Off-street parking. As required by Article XIII of this chapter.
(7) 
Accessory structures. As required by § 311-63 of this chapter.
(8) 
Impervious surface requirements. Not more than 40% of any lot area shall be covered by impervious surfaces.
[Added 5-15-2008 by Ord. No. 1047]
B. 
Single-family semidetached dwellings (twins).
[Amended 1-15-2004 by Ord. No. 984]
(1) 
Lot area. A lot area of not less than 3,000 square feet per dwelling shall be provided for every dwelling hereafter erected.
(2) 
Lot width. The lot for each dwelling hereafter erected shall have a width at the building line of not less than 30 feet.
(3) 
Minimum yard requirements.
(a) 
Front yard. There shall be a front yard the depth of which shall be not less than 15 feet, unless existing buildings on abutting lot(s) have greater front yards. In such cases, the required front yard shall be not less than the front yard of one of the existing buildings.
(b) 
Side yard. For every single-family semidetached dwelling, there shall be one side yard which shall be not less than 10 feet in width.
(c) 
Rear yard. There shall be a rear yard which shall be not less than 15 feet in depth.
(d) 
Corner lot setback. As required by § 311-27A(3)(d) of this chapter.
(4) 
Building coverage. The aggregate area of all buildings on a lot shall not exceed 30% of the lot area.
(5) 
Height regulation. No building shall have a height exceeding 35 feet with a maximum of three stories above grade.
(6) 
Off-street parking. As required by Article XIII of this chapter.
(7) 
Accessory structures. As required by § 311-63 of this chapter.
(8) 
Impervious surface requirements. Not more than 40% of any lot area shall be covered by impervious surfaces.
[Added 5-15-2008 by Ord. No. 1047]
C. 
Two-family detached dwellings (duplexes).
[Amended 1-15-2004 by Ord. No. 984]
(1) 
Lot area. A lot area of not less than 2,250 square feet per unit shall be provided for every building hereafter erected.
(2) 
Lot width. The lot for each dwelling hereafter erected shall have a width at the building line of not less than 45 feet.
(3) 
Minimum yard requirements.
(a) 
Front yard. There shall be a front yard the depth of which shall be not less than 15 feet, unless existing buildings on abutting lot(s) have greater front yards. In such cases, the required front yard shall be not less than the front yard of one of the existing buildings.
(b) 
Side yards. There shall be two side yards, both of which shall be at least 10 feet in width.
(c) 
Rear yard. There shall be a rear yard which shall be not less than 15 feet in depth.
(d) 
Corner lot setbacks. As required by § 311-27A(3)(d) of this chapter.
(4) 
Building coverage. The aggregate area of all buildings on a lot shall not exceed 30% of the lot area.
(5) 
Height regulation. No building shall have a height exceeding 35 feet with a maximum of three stories above grade.
(6) 
Off-street parking. As required by Article XIII of this chapter.
(7) 
Accessory structures. As required by § 311-63 of this chapter.
(8) 
Impervious surface requirements. Not more than 40% of any lot area shall be covered by impervious surfaces.
[Added 5-15-2008 by Ord. No. 1047]
D. 
Multifamily dwelling (apartments). Maximum of four units per building.
[Amended 8-15-1996 by Ord. No. 903; 1-15-2004 by Ord. No. 984]
(1) 
Lot area. A lot area of not less than 1,875 square feet per unit shall be provided for every building hereafter erected.
(2) 
Lot width. Each lot shall have a width at the building line of not less than 75 feet.
(3) 
Minimum yard requirements.
(a) 
Front yard. There shall be a front yard the depth of which shall be not less than 25 feet.
(b) 
Side yards. There shall be two side yards, one on either side of the building, which shall have an aggregate width of 35 feet, and neither side yard shall be less than 15 feet wide.
(c) 
Rear yard. There shall be a rear yard which shall be not less than 20 feet in depth.
(d) 
Corner lot setbacks. As required by § 311-17C(4) of this chapter.
(4) 
Building coverage. The aggregate area of all buildings on a lot shall not exceed 25% of the lot area.
(5) 
Distance between parking and property lines. There shall be a minimum distance of three feet between any parking area and a side or rear lot line.
(6) 
Minimum floor area per unit, multifamily dwellings. The minimum floor area per unit, exclusive of common stairs and hallways serving more than one unit, shall be as required below:
(a) 
One-bedroom unit: 625 square feet.
(b) 
Two-bedroom unit: 775 square feet.
(c) 
Three-bedroom unit: 925 square feet.
(d) 
Efficiency unit: 375 square feet.
[Added 9-20-2007 by Ord. No. 1037]
(7) 
Height regulation. No building shall have a height exceeding 35 feet with a maximum of three stories above grade.
(8) 
Off-street parking. As required by Article XIII of this chapter.
(9) 
Accessory structures. As required by § 311-63 of this chapter.
(10) 
Impervious surface requirements. Not more than 40% of any lot area shall be covered by impervious surfaces.
[Added 5-15-2008 by Ord. No. 1047]
E. 
Single-family attached dwellings (townhouses).
[Amended 8-15-1996 by Ord. No. 903; 1-15-2004 by Ord. No. 984]
(1) 
Lot area. A lot area of not less than 1,800 square feet shall be provided for every dwelling unit.
(2) 
Lot width. The lot for each dwelling unit hereafter erected shall have a width at the building line of not less than 20 feet.
(3) 
Attached units. The number of attached units in any townhouse structure shall not be less than three or more than five units in a row.
(4) 
Minimum yard requirements.
(a) 
Front yard. There shall be a front yard the depth of which shall be not less than 20 feet.
(b) 
Side yards. Each group of townhouse units shall have two side yards, with an aggregate of 50 feet, and neither side yard shall be less than 25 feet wide.
(c) 
Rear yard. There shall be a rear yard which shall be not less than 25 feet.
(d) 
Corner lot setbacks. As required by § 311-17C(4) of this chapter.
(5) 
Building coverage. The aggregate area of all buildings on a lot shall not exceed 35% of the lot area.
(6) 
Variation in setback and design. If there are four or five dwelling units, no more than two consecutive dwelling units in any townhouse structure shall have the same front setback line, and, this setback difference between adjacent dwelling units shall be a minimum of two feet. If there are three dwelling units, then the middle unit in the row of the structure shall have a setback difference between adjacent units and it shall be a minimum of two feet. In addition, each dwelling unit shall be distinguished from the adjacent dwelling unit in some appropriate manner such as by varying unit width, use of different exterior material or varying arrangements of entrances or windows.
(7) 
Height regulation. No building shall have a height exceeding 35 feet with a maximum of three stories above grade.
(8) 
Off-street parking. As required by Article XIII of this chapter.
(9) 
Accessory structures. As required by § 311-63 of this chapter. [1]
[1]
Editor's Note: Former Subsection F, Multifamily dwellings, which immediately followed this subsection, was repealed 1-15-2004 by Ord. No. 984
(10) 
Impervious surface requirements. Not more than 45% of any lot area shall be covered by impervious surfaces.
[Added 5-15-2008 by Ord. No. 1047]