[Ord. 559, 6/20/1959, Section 601; amended by Ord. 577, 6/7/1960, Section 1; Ord. 578, 6/10/1960, Article VII; Ord. 753, 10/13/1969; Ord. 761, 4/6/1970, Section 2; Ord. 801, 6/6/1972; Ord. 834, 12/4/1973; Ord. 844, 2/4/1974; Ord. 850, 5/6/1974; Ord. 1021, 3/2/1982, Section 2; Ord. 1034, 12/10/1982, Section 5; Ord. 1529, 5/5/1997, Section 5; Ord. 1537, 8/27/1997, Section 4; Ord. 1788, 7/14/2004, Section 6]
In this district, the land and structures may be used, and structures may be erected, altered, enlarged, for the following uses only:
a. 
Any use permitted in the R-2 district.
b. 
Fraternity or Sorority House.
c. 
Multiple Dwelling, except in a row dwelling exceeding six units in length in any one direction.
d. 
Special exceptions permitted by the Zoning Hearing Board, as prescribed in Section 606 of this chapter, including:
(1) 
Child Day-care center.
(2) 
Nursing or Convalescent Home.
(3) 
(Reserved){160}
(4) 
Family Day Care Home.
(5) 
Private Academic School and Religious School
e. 
Group Dwelling Project, as prescribed in Section 501.1(1) of this chapter.
f. 
Community Center.
g. 
Personal Care Home for Adults (Large and Small)
h. 
Student Home.
[Ord. 559, 6/20/1959, Section 603-B; amended by Ord. 753, 10/12/1969, Section 1; Ord. 761, 4/6/1970, Section 1; Ord. 932, 3/7/1978, Section 1; Ord. 961, 9/11/1979, Section 1(D); Ord. 1021, 3/2/1982, Section 3; Ord. 1034, 12/10/1982, Section 6{170}; Ord. 1177, 5/27/1987, Sections 2 and 3; Ord. 1396, 12/10/1992, Section 5; Ord. 1537, 8/27/1997, Section 5; Ord. 1818, 10/20/2005, Section 1 and 2; Ord. 1841, 4/4/2006, Section 10]
Each lot in this district shall comply with the following minimum requirements, except as otherwise provided:
a. 
Lot area.
One-family dwelling: 8,000 square feet.
Two-family dwelling: 10,000 square feet.
Multiple-family dwelling (per unit): 3,500 square feet.
Personal care homes for adults: large (per unit), 2,000 square feet; small, 8,000 square feet.
Community center: one acre.
Private academic schools: one acre.
b. 
Lot width.
One-family dwelling: 60 feet.
Two-family dwelling: 80 feet.
Multiple-family dwelling: 120 feet.
Community center: 150 feet.
Personal care home for adults: large, 120 feet; small, 60 feet.
Private academic school: 150 feet.
c. 
Front yard depth.
One-family dwelling: 30 feet.
Two-family dwelling: 30 feet.
Multiple-family dwelling: 40 feet.
Fraternity/sorority house: 40 feet.
Other: 40 feet.
Personal care home for adults: large, 40 feet; small, 30 feet.
d. 
Side yard width.
One-family dwelling: eight feet.
Two-family dwelling: eight feet.
Accessory building: eight feet.
Multiple-family dwelling: 20 feet.
Fraternity/sorority house: 20 feet.
Other: 20 feet.
Personal care home for adults: large, 20 feet; small, eight feet.
When a multifamily dwelling or a Personal Care Boarding Home for Adults is located on a corner lot, the interior side yard shall be 30 feet.
e. 
Rear Yard Depth.
All buildings and structures except those exempted under Section 502.f and those enumerated in Subsection f. below: 30 feet.
f. 
Additional Setback for Larger Buildings.
In addition to the required side and rear yard depths establish herein, buildings higher than 30 feet or longer than 50 feet or both shall be set back additional distance calculated as follows:
(1) 
For buildings higher than 30 feet, both the side and rear yard shall be increased three inches for each foot of building height above 30 feet.
(2) 
For buildings where any wall facing a side or rear yard is over 50 feet in length, the respective side or rear yard, as the case may be, shall be increased an additional 1.5 inches for each foot of building wall length over 50 feet.
(3) 
For buildings that are both higher than 30 feet and have a wall over 50 feet in length facing any side or rear yard, both the side and rear yard shall be increased three inches for each foot of building height above 30 feet plus the respective side or rear yard where a facing wall is over 50 feet in length shall be increased an additional 1.5 inches for each foot of building wall length over 50 feet.
g. 
Lot Coverage.
All one- and two-family dwellings and accessory buildings (including detached garages) appurtenant thereto: 30%.
Driveways and off-street parking areas at one- and two-family dwellings, as follows:
Lot area <10,000 square feet: 12%.
Lot area 10,000 to 20,000 square feet: 12% minus 0.4% per 1,000 square feet of lot area above 10,000 square feet.
Lot coverage for lots with square foot area between any two 1,000 square foot points shall be calculated on the basis of the lower 1,000 square foot area.
[Example: Lot area 16,500 square feet; Lot coverage: ((0.12 - (6 x 0.004)) x 16,500 square feet = 0.096 x 16,500 square feet = 1,584 square feet]
Lot area >20,000: 8%.
h. 
Minimum Open Space (all nonresidential uses): 50%.
[Ord. 559, 6/20/1959, Section 603-B; amended by Ord. 753, 10/13/1969, Section 1]{180}
The maximum height of structures in this district, except as otherwise provided, shall be:
a. 
Dwelling: 35 feet (not exceeding three stories).
b. 
Accessory Building: 15 feet (not exceeding one story).
c. 
Non-Dwelling: 35 feet (except as otherwise provided in Section 503.d of this chapter).
[Ord. 559, 6/20/1959, Section 604-B; amended by Ord. 753, 10/13/1969, Section 1; Ord. 762, 5/5/1970, Section 1; Ord. 941, 9/11/1978, Section 128; Ord. 1177, 5/27/1987, Section 4; Ord. 1396, 12/10/1992, Section 6; Ord. 1854, 10/16/2006, Section 2]
For any multifamily residential use, a minimum of 65% of the total lot shall be devoted to open space; 25% of the required open space shall be devoted to usable recreational area in rear yards or side yards not abutting a public street.
[Ord. 761, 4/6/1970, Section 2; amended by Ord. 941, 9/11/1978, Section 128; Ord. 1788, 7/14/2004, Section 7]
Under powers as set forth in this chapter, the Zoning Hearing Board, after referral to the Planning Commission for review and submittal of a report within 15 days and after public hearing, may authorize a permit as a special exception, subject to the conditions set forth and any further conditions the Board may deem best suited to insure safety and general welfare, minimize traffic and to safeguard adjacent properties for the following:
a. 
Child Day-care center. Child day-care centers are permitted in the R-3B districts, subject to terms and conditions as set forth in Section 706.a of this chapter.
b. 
Convalescent or Nursing Home. Nursing homes or convalescent homes are permitted in R-3B districts, provided:
A minimum of 40% of the total lot is devoted to open space, exclusive of vehicular parking lots, driveways or loading stalls, and any building coverage not functional to the open space.
Building coverage shall not exceed 30% of the total land area of the lot.
All other regulations established for the R-3B district relating to screening, height, side and rear yards are met.
c. 
(Reserved){200}
d. 
Family Day Care Home. Family day care homes are permitted in R-3B districts, subject to terms and conditions as set forth in Section 706.c of this chapter.
e. 
Private Academic School and Religious School. Private academic schools and religious schools are permitted in R-3B district, subject to terms and conditions as set forth in Section 706.d of this chapter.