(a)

Accessory buildings. No accessory building shall be constructed upon a lot until the construction of the main use building has been actually commenced. No accessory building shall be used unless the main use building on the lot is also being used.

(b)

Railroad rights-of-way. On all existing rights-of-way of railroad companies, regardless of the zoning district in which such rights-of-way are located, railroad trackage and accessories to railroad movement may be constructed or maintained.

(Code 1978, §§ 20.1100, 20.1101)

(a)

Public, semipublic or public service buildings, hospitals, institutions or schools, when permitted in a district, may be erected to a height not exceeding 60 feet, and churches and temples may be erected to a height not exceeding 75 feet if the building is set back from each yard line at least one foot for each two feet of additional height above the height limit otherwise provided in the district in which the building is located.

(b)

Chimneys, cooling towers, elevators, bulkheads, fire towers, grain elevators, flour mills, monuments, tanks, water towers, ornamental towers and spires, church steeples, radio or television towers or necessary mechanical appurtenances may be erected to a height in accordance with existing or hereinafter adopted ordinances of the city, provided that in the absence of any such ordinance there shall be no height limitations of these structures.

(Code 1978, § 20.1102)

(a)

In a district in which commercial or industrial buildings are built with one or more stories for residential purposes above the commercial or industrial use, no side yards will be required for the residential portions of the building; provided that the part of the building intended for residential use is not more than two rooms deep from front to rear.

(b)

No yard or other open space provided about any building for the purposes of complying with the provisions of these regulations shall again be used as a yard or open space for another building. Every part of a required yard shall be open to the sky and unobstructed by buildings except for accessory building in the rear yard and except the ordinary projections of skylights, sills, belt courses, cornices and other ornamental features which may project into such yards a distance of not more than two feet.

(c)

Open, unenclosed porches, platforms or landing places not covered by a roof or canopy may extend or project into the front yard for a distance not exceeding six feet.

(d)

Terraces, uncovered porches, platforms and ornamental features which do not extend more than three feet above the floor level of the ground (first) story may project into a required side yard, provided these projections are distant at least two feet from the adjacent side lot line.

(e)

Front yard.

(1)

Where 40 percent or more of the frontage on one side street between two intersecting streets is developed with buildings that have observed (with a variation of five feet or less) a front yard greater in depth than herein required, new buildings shall not be erected closer to the street than the front yard so established by the now existing buildings.

(2)

Where 40 percent or more of the frontage on one side of a street between two intersecting streets is developed with buildings that have not observed a front yard as described in subsection (e)(1) of this section, then:

a.

When a building is to be erected on a parcel of land that is within 100 feet of existing buildings on both sides, the minimum front yard shall be a line drawn between the two closest front corners of the adjacent buildings on the two sides;

b.

Where a building is to be erected on a parcel of land that is within 100 feet of an existing building on one side only, such building may be erected as close to the street as the existing adjacent building; or

c.

In determining such front yard depth, buildings located entirely on the rear one-half of a lot shall not be counted.

(f)

Vision clearance. On any corner lot on which a front or side yard is required, no wall, fence, sign, or other structure, or any plant growth shall be permitted or maintained higher than two feet above the curb level within 15 feet of the intersection of the property lines.

(g)

Side yards.

(1)

The minimum width of a side yard of a corner lot in the R-1 or R-2 district shall not be less than ten feet, provided that if the street side line of a corner lot is in the same block frontage with a lot or lots, the side yard shall extend to the average alignment of the building along the same side of the street, unless such buildings are more than 25 feet back from the street line, in which case the side yard need not be more than 25 feet

(2)

A side yard of not less than 25 feet on the side of the lot adjoining on an R-1 or R-2 district shall be provided for all schools, libraries, churches, community houses, clubs and other public or semipublic buildings hereafter erected or structurally altered.

(3)

Where a lot in the B-2, B-3, or I districts is not used for residential purposes and abuts upon an R-1 or R-2 district, a side yard shall be provided of not less than five feet.

(4)

Garages detached or attached to the main use building entering on the side street of a corner lot, shall maintain a side yard of 20 feet in front of the garage.

(h)

Rear yard.

(1)

In the R-1 or R-2 district, accessory buildings shall not occupy more than 30 percent of the required minimum rear yard area. Accessory buildings shall be a minimum of 12 feet from the main use building. In the R-1 and R-2 district, no accessory building shall be more than one story in height.

(2)

In computing the depth of a rear yard where such yard opens into an alley, one-half of the width of such alley may be assumed to be a portion of the required yard.

(Code 1978, § 20.1103)