The R-3 Two-Family Residential District is composed of certain medium-density residential areas of Richland Township representing a compatible mingling of single-unit and double-unit dwellings and mobile home trailer parks by special exception, plus certain open areas where similar residential development appears likely to occur. The regulations for this district are designed to stabilize and protect the essential characteristics of the district; to promote and encourage a suitable environment for family life; and to prohibit all activities of a commercial nature except certain home occupations. To these ends, development is limited to a relatively medium concentration and permitted uses are typically single-  and two-unit dwellings, providing homes for the residents in this choice of dwelling types, plus certain additional uses such as schools, parks, churches and certain facilities which serve the residents of the district.
A building may be erected or used and a lot may be used or occupied for any of the following purposes.
A. 
Permitted uses.
(1) 
Any permitted use and accessory use permitted in the R-2 District.
B. 
Uses by special exception.
(1) 
Bed-and-breakfast.
(2) 
Family day-care/group day-care home/day-care center as regulated by Article XXII.
(3) 
Group home.
(4) 
Home business.
(5) 
Hospital.
(6) 
Mobile home trailer park.
(7) 
Nursing home (to include assisted living/personal care facilities).
(8) 
Planned residential development.
(9) 
Two-family dwellings - subdivided for individual ownership.
[Added 12-23-2005 by Ord. No. 302]
A. 
Lot area and width. The minimum lot area for every building hereafter erected or altered shall be as follows:
(1) 
One-family detached dwelling, convent, monastery, rectory or parish house: 8,700 square feet and a width at the building line of not less than 60 feet.
(2) 
Two-family detached dwelling: 11,000 square feet and a width at the building line of not less than 60 feet.
(3) 
Church or similar place of worship: as required in the R-1 District.
(4) 
Public or private school: as required in the R-1 District.
(5) 
Private school not exceeding 30 students: as required in the R-2 District.
B. 
Building area. All buildings, including accessory uses, shall cover not more than 30% percent of the area of the lot.
C. 
Yard area setbacks.
(1) 
No building or structure shall be erected or enlarged unless the minimum yard areas and setbacks are provided as follows:
(a) 
Front yard: not less than 35 feet.
(b) 
Side yard: not less than 10 feet.
(c) 
Rear yard: not less than 35 feet.
(2) 
Corner lots.
(a) 
Front yard: not less than 35 feet.
(b) 
Side yard abutting side street: not less than 25 feet.
(c) 
Side yard, interior: not less than 10 feet.
(3) 
Exceptions. Where more than 50% of the lots within a block contain existing structures, the front yard setback may be reduced to conform to the average setback line of existing structures.
Height regulations shall be as permitted or required in the R-1 District.
Every one-family dwelling unit hereafter erected or altered shall have a building area of not less than 700 square feet per dwelling unit. Every dwelling unit of more than one story hereafter erected or altered shall have a total floor area of not less than 1,000 square feet per dwelling unit. Every two-family dwelling hereafter erected or altered shall have a building area of not less than 1,400 square feet.
Off-street parking and loading facilities shall be provided as required or permitted under Article XVIII.