The regulations specified in this chapter shall be subject to the exceptions, modifications and interpretations contained in this article.
The building height limitations of this chapter shall not apply to:
A. 
Fire or parapet walls, cupolas, steeples, flagpoles, smokestacks, masts, water tanks or other roof superstructures.
B. 
Monitors, scenery lofts, penthouses or roof structures for housing elevators, stairways, tanks, ventilating fans or similar equipment required to operate and maintain the building.
C. 
Monuments, fire towers, hose towers, cooling towers, gas holders, or utility poles which apply to essential services.
D. 
Churches, schools, institutional buildings, public utility buildings and structures, not including towers, not less than 200 feet distant from any R District, provided that for each three feet by which the height of such building or structure exceeds the maximum height otherwise permitted in the district, its side and rear yard shall be increased in width and depth by an additional foot over the side and rear yards required for the highest building otherwise permitted in the district.
E. 
Any other building, tower, or structure not listed in these height regulations shall need the approval of the Board of Zoning Appeals.
In any district where dwellings are permitted, a single-family dwelling may be located on any lot or plot of official record as of the effective date of this chapter and in separate ownership from any adjacent lot, irrespective of its area or width or the width of the street on which it fronts, subject to the following requirements:
A. 
The sum of the side yard widths on any such lot or plot must be 30% of the width of the lot, but in no case shall any one side yard be less than 10% of the width of the lot.
B. 
The depth of the rear yard on any such lot must be 30% of the depth of the lot, but in no case shall it be less than 15 feet.
A. 
Any lot or other premises not connected to the public water and sewer systems shall be subject to the following minimum lot requirements in all districts, unless a greater requirement is specified elsewhere in this chapter:
Type of Connection
Lot Area
(square feet)
Lot Width
(feet)
Public sewer connection only
10,000
80
Public water connection only
15,000
100
Not connected to either
20,000
100
B. 
No lot shall have a chemical toilet or other toilet of any kind not connected either to the public sewer system or to a private disposal facility approved by the proper health authorities, except where installed temporarily for use in connection with a construction project.
Where a building is to be located between two existing principal buildings in the same block front and within 200 feet of them, the front yard requirement for the proposed building shall be the average of those provided by the two existing buildings. The forward most wall of the proposed building shall be located at the front yard line so established. In the case of a corner lot, the proposed building shall be set in line with the building next adjoining and within 200 feet. In either case, however, no front yard shall be less than 15 feet in any R District or 10 feet elsewhere.
Buildings on lots extending through from street to street shall provide the required front yard on both streets but need not provide the required rear yard in the case where an equivalent open space is provided in lieu of such required rear yard.
A. 
In computing the depth of a rear yard or the width of a side yard where the rear or side yard opens on an alley, 1/2 of the alley width may be included as a portion of the rear or side yard, as the case may be.
B. 
Each side yard shall be increased in width by two inches in any R District for each foot by which the length of the side wall of the building, adjacent to the side yard, exceeds 40 feet.
C. 
The side yard width may be varied where the side wall of a building is not parallel with the side lot line or is broken or otherwise irregular. In such case the average width of the side yard shall not be less than the otherwise required least width; provided, however, that such side yard shall not be narrower at any point than 1/2 the otherwise required least width or narrower than three feet in any case.
D. 
Where a corner lot rears upon the side of another lot in an R District, either directly or across an alley, the side yard on the street side of the corner lot shall have a width equal to not less than 1/2 the required depth of the front yard on the lot in the rear.
A. 
The following architectural features may project into required yards or courts as hereinafter set forth:
(1) 
Into any required front yard, rear yard, outer court or required side yard adjoining a side street lot line:
(a) 
Cornices, eaves or other architectural features may project a distance not exceeding two feet.
(b) 
Fire escapes may project a distance not exceeding four feet.
(c) 
An uncovered stair and necessary landings may be a distance not to exceed four feet.
(d) 
Bay windows, balconies and chimneys may project a distance not exceeding three feet, provided that such features do not occupy in the aggregate more than 1/3 of the length of the wall on which they are located.
(2) 
Subject to the conditions specified above, the above named features may project into any required side yard adjoining an interior side lot line a distance not to exceed 1/5 of the width of such side yard, but not to exceed four feet in any case.
B. 
Fences, walls and hedges may be located in required yards or courts, subject to the limitation in Article IV and the following:
(1) 
Fences, walls or hedges not exceeding at any point four feet in height above the elevation of the ground at such point may be located in any yard or court, except that on a corner lot no such fence, wall or hedge may be located in the front yard exceeding 2 1/2 feet in height above the elevation of the ground.
(2) 
Fences and walls not exceeding at any point six feet in height above the elevation of the ground at such point may be located in any rear yard or side yard area, provided that on a reversed corner lot no such fence, wall or hedge shall be closer to the side street lot line, within 25 feet of the side lot line of an adjoining lot to the rear, than a distance equal to the least depth of the front yard required for a one story building on such adjoining lot.