A. Church spires, cupolas, chimneys, flagpoles, radio or television aerials and their supports if not occupying an area greater than 25% of the ground area covered by the main building.

Domes, ornamental towers, observation towers, water towers or tanks, hose towers and scenery lofts.

In any district, where 40% or more of the properties fronting upon one side of a street between two street intersections (commonly known as a “block”) and located in such district have been improved with buildings at the time of the passage of this chapter and a front yard of greater depth than the minimum required by the Schedule of Heights, Area and Bulk[1] for such district has been provided for the majority of such buildings, such minimum shall be disregarded and for it shall be substituted the requirement that no building or structure hereafter erected or altered in said portion of such district shall be placed nearer to the street line than the average depth of the front yard established by such majority, except that the minimum depth of the front yard for a dwelling on a lot between two adjoining lots, upon each of which there is a building at the time of passage of this chapter, shall be the average of the depths of front yards provided for such buildings. Where less than 40% of such property has been improved with buildings or where dwellings do not front upon a street, the minimum depth of front yard shall be as required by the Schedule of Height, Area and Bulk.

A porch may be erected in a front yard, provided that it is not closer to an adjoining property than the required width of the side yard and does not extend into the required front yard more than 10 feet.

The depth required by the Schedule of Height, Area and Bulk[1] for rear yards shall be the depth exclusive of any portion used for accessory structures, excepting a garage erected in accordance with Article VI.

In measuring the depth of rear yards in cases where the rear lot line is not parallel to the street line, average dimensions shall be used.

In any residential district, no dwelling shall be located on a through lot unless such dwelling shall meet the requirement of the setback lines on both street.

In any commercial, light industrial or shopping center district, when a portion of the building above the ground floor, but not the ground floor itself, is used as a dwelling, an open space in the rear thereof shall be provided for the stories used for residence purposes. Such space shall be open and unobstructed for the full width of the lot and at least 15 feet in depth at the point above the window sills at the lowest residence floor.