In order to encourage greater flexibility in design and more attractive arrangements of buildings and greater utilization of open spaces, yard regulations for apartment house buildings are hereby established.
The yards of apartment house buildings shall be related to the space within the dwelling units as well as the yards. Buildings shall be arranged so as to assure privacy between adjacent buildings and intersecting wings of buildings, from streets and parking and recreation areas in accordance with the following:
(a) Minimum Distance Between Facing and Overlapping Buildings. The minimum distance(s) between any two apartment house buildings or parts thereof in a development area will vary according to the length (L) and height (H) of buildings. Such minimum distance(s) shall be determined by the formula:
Minimum Distance(s) = LA + LB + HA + HB
f
the elements of such formula being defined as follows:
(1) Minimum Distance(s) means the required minimum horizontal distance between any wall of building A and the nearest wall of building B or the vertical prolongation of either.
(2) LA means the total length of building A which, for the purposes of the formula, is defined as the length of the portion or portions of any wall or walls of building A from which lines drawn perpendicular to the face of such wall or walls will intersect any wall of building B.
(3) LB means the total length of building B which, for the purposes of the formula, is defined as the length of the portion or portions of any wall or walls of building B from which lines drawn perpendicular to the face of such wall or walls will intersect any wall of building A.
(4) HA means the height of building A.
(5) HB means the height of building B.
(6) f means the division factor, which shall be:
5 for an apartment house, U3 District;
3 for an elevator apartment house, U3E District.
The elements of the formula are shown on the illustrations following subsection (h) hereof and as defined above.
(b) Minimum Distance in Oblique and Angular Building Arrangements. The minimum distance(s) in such arrangements are determined by the formula:
LA
1
+ LA
2
+ LB + HA + HB
Minimum Distance(s) = f
The elements of the formula are shown on the illustrations following subsection (h) hereof and as defined above.
(c) Minimum Distance Between Nonoverlapping Walls. Where walls of two buildings do not directly face each other or do not overlap, i.e. where lines drawn perpendicular from the face of any wall of one building will not intersect the face of any wall of another building, the minimum horizontal distance between such buildings shall not be less than one-half of the combined height of the two buildings. Such minimum distance(s) shall be determined by the formula:
Minimum Distance(s) =HA + HA
2
The elements of the formula are shown on the illustrations following subsection (h) hereof and as defined above.
(d) Minimum Distance Between Walls of Court Arrangements. In arrangements where two or more buildings are connected by a common entranceway of two stories or less, the entire length of the principal buildings shall be used to determine the length (L) factor. The minimum distance(s) shall be determined by applying the formula set forth in subsection (a) hereof.
In arrangements of parallel walls with offset sections, the distance between the section of walls shall be derived from such formula and shall be measured as the average distance, provided that the minimum distance(s) between any two facing sections shall be not less than sixty feet. The elements of the formula are shown on the illustrations following subsection (h) hereof and as defined above.
In U-shaped arrangements the minimum distance(s) between the parallel walls (A and B) facing the court are determined by the formula:
Minimum Distance(s) = 2(LA + LB) + HA + HB
f
The minimum distance(s) between any two facing sections shall be not less than sixty feet. The elements of the formula are shown on the illustrations following subsection (h) hereof and defined above.
In H-shaped arrangements the minimum distance(s) between the parallel buildings as indicated by the measurement of walls LA and LB facing the court are determined by the formula:
Minimum Distance(s) = LA + LA' + LB + LB' + HA + HB
f
The minimum distance(s) between any two facing sections shall be not less than sixty feet. The elements of the formula are shown on the illustrations following subsection (h) hereof and as defined above.
(e) Minimum Distance Between Buildings and Side or Rear Lot Lines. The minimum distance(s) between any apartment building or parts thereof in a development area and any side or rear line of such development area
shall vary according to the length and height of the building. Such minimum distance(s) shall be determined by the following formulas:
Where land zoned as an Apartment or Elevator Apartment House District abuts U1 One-Family or U2 Two-Family Districts:
Minimum Distance(s) = A + L + H
f
Where land zoned as an Apartment or Elevator House District abuts all other zoned uses:
A + L + H
Minimum Distance(s) = f
2
the elements of such formula being described as follows:
A =twenty feet where the (L) is less than fifty feet and the (H) is less than thirty-five feet. In all other cases “A” shall be fifty feet.
L = length of the property line in feet measured between perpendicular lines to the property line where such perpendiculars touch the extreme ends of the building.
H = height of building in feet.
F = division factor from the schedules below.
Buildings whose length (L) is up to 100 feet and:
the height (H) is up to 50 feet F = 5
the height (H) is 50.1 to 100 feet F = 3
the height (H) is 100.1 to 150 feet F = 2
the height (H) is 150.1 and up F = 1.5
Buildings whose length (L) is from 100.1 feet to 250 feet and:
the height (H) is up to 50 feet F = 3.5
the height is from 50.1 feet to 100 feet F = 2.5
the height (H) is from 100.1 and up F = 1.5
Buildings whose length (L) is 250.1 feet or more and:
the height (H) is up to 50 feet F = 2.5
the height (H) is from 50.1 to 100 feet F = 1.5
the height (H) is from 100.1 feet and up F = 1
When computing the setback formula for buildings of more than one wing, all wings that are within fifteen degrees of being perpendicular to the property line shall be considered as a separate building for measurement purposes. All attached wings that are not within fifteen degrees of the perpendicular to the property line shall be considered as one continuous building and the entire length between perpendicular lines to the property line shall be used for determining the length requirement of the formula.
The required setback shall be measured from the wall plane or point that is the closest to the property line.
(f) Distances From Main Building to Accessory Uses. The minimum distance(s) from any apartment house building to parking areas, driveways, walks and recreation areas to the development area boundaries, as set forth in this subsection, are desirable criteria to be applied in the site planning.
Minimum Distances | |||
From Apartment Buildings | From Boundary Lines (feet) | ||
Accessory Use | Main Wall (feet) | End Wall (feet) | |
(1) Parking areas | 10 | 20 | 20 |
(2) Private streets (except at entrances) | 30 | 30 | 10 |
(3) Walks (public use) | 15 | 10 | 10 |
(4) Recreation areas (active play) | 40 | 30 | 15 |
The minimum distance(s) set forth in the schedule are intended to be applied to:
A. Main wall. Any exterior wall containing the principal windows of a living, dining or sleeping room or rooms;
B. End wall. Any exterior wall, other than a main wall, containing minor windows of a dining or sleeping room, or principal or minor windows of kitchen or bathrooms, or a blank surface;
C. Private streets. At all locations except at the garage entrance or main entrance of the dwelling served;
D. Walks. Used by the public at all locations except at the entrance to the dwelling served; and
E. Recreation areas. Areas used for active play.
(g) Townhouse Dimensions. A unit of a townhouse shall be not less than eighteen feet in width and any main or longitudinal wall of a sequence of townhouse units shall not exceed 100 feet in length without a ninety degree offset of at least ten feet, and the aggregate length of any wall, including its offsets, shall not exceed 160 feet in length.
(h) Illustrations of Yard Regulations. The following diagrams, called “Illustrations of Yard Regulations,” indicate the regulations and planning criteria as set forth in this section and they are hereby made a part of this Zoning Code.
(Ord. 35-1969. Passed 2-17-69.)