The R-3 district is intended to provide a mixed residential neighborhood, more particularly designed for high-density dwelling areas, where all uses of a residential character, including single-family homes, duplexes, apartments and mobile home parks and similar uses, may occur in harmony.
(Ord. 467 § 29, 1984; Ord. 467-G § 5, 1990)
The regulations set out in this chapter shall apply in all R-3 districts and shall be subject to the provisions of Chapters 18.102 through 18.108 of this title.
(Ord. 467 § 20, 1984; Ord. 467-G § 5, 1990)
Uses allowed by right in an R-3 district shall be as follows:
(1) 
All uses permitted in R-1 and R-2 districts, subject to securing a use permit for any use for which a use permit is required in any R-1 or R-2 district;
(2) 
Multiple-family dwelling and dwelling groups of up to four units;
(3) 
Accessory uses and accessory buildings.
(Ord. 467 § 20, 1984; Ord. 467-G § 5, 1990; Ord. 467-P § 1, 1993)
Uses allowed by use permit in an R-3 district shall be as follows:
(1) 
Clubs and lodges;
(2) 
Hospitals, rest homes, sanitariums and clinics;
(3) 
Mobile home parks;
(4) 
Group homes, as defined by Chapter 18.14 of this title;
(5) 
Multiple-family dwellings and dwelling groups of five or more units;
(6) 
Professional offices;
(7) 
All other uses similar to those enumerated above when determined by the planning director, upon presentation of substantial evidence, to be of the same or similar character as the above permitted uses.
(Ord. 467 § 20, 1984; Ord. 467-G § 5, 1990; Ord. 467-P § 2, 1993)
Development standards in an R-3 district shall be as follows:
(1) 
Building height limit: forty-five feet;
(2) 
Percentage of lot coverage permitted: sixty percent;
(3) 
Front yard required: minimum required twenty feet; provided, that where four or more lots in a block have been improved with buildings, the minimum front yard shall be the average of the improved lots if less than the required twenty feet, but not less than fifteen feet, except where combined with a B district;
(4) 
Side yard required: five feet;
(5) 
Rear yard required: fifteen feet;
(6) 
Special yards required for dwelling groups:
(A) 
In case the buildings of the group are so located on the lot that the rear of the building which faces the street is faced by the front of a building to the rear (e.g., in a "front to back" series) no such building shall be closer than twenty feet to any other such building and the side yard providing access shall not be less than eight feet.
(B) 
In case the buildings of the group are so located on the lot that the rears thereof abut upon one side yard and the front thereof abut the other side (e.g., in a single row "side to side" series) the side yard providing access shall have a width of not less than twelve feet.
(C) 
In case the units of a group are so located on the lot that the rears thereof abut upon one side yard and the front thereof abut the other side (e.g., in a double row "side to side" series) the court shall have a width of not less than twenty feet.
(D) 
Except with approved firewalls, separate units of a group shall not be closer to any other building of the group than a distance of ten feet.
(E) 
No building in any group shall be so located on the lot that the rear thereof abuts on any street line.
(F) 
Distances required between buildings on the same lot and as yards and courts for dwelling groups shall be increased by two feet for each story that the height for any building or dwelling group exceeds two stories.
(Ord. 467 § 20, 1984; Ord. 467-G § 5, 1990)
(1) 
All development in any R-3 district shall be subject to design review according to the provisions of this title.
(2) 
For uncovered parking areas with sixteen or more spaces, the minimum landscaping required shall be one tree, within the parking area, of a species suited to the area climate zone for every eight parking spaces to provide shade and visual diversity. Additional landscaping may be required in areas abutting public roads on a case-by-case basis.
(Ord. 467 § 20, 1984; Ord. 467-G § 5, 1990; Ord. 467-AC § 9, 2003)