A.    In computing the depth of a rear yard, where such yard opens onto an alley, one-half of the alley width may be included as a portion of the rear yard.

    B.    Accessory buildings which are not a part of the main building may be built in a rear yard within five feet of the rear lot line. An accessory building which is not part of the main building shall not occupy more than thirty (30) percent of the required rear yard.

    C.    Every part of a required yard shall be open to the sky, unobstructed, except for accessory buildings in a rear yard, and except for the ordinary projections of skylights, sills, belt courses, cornices and ornamental features projecting not to exceed twelve (12) inches. This requirement shall not prevent the construction of fences not exceeding eight feet in height, except on that portion of lots within thirty (30) feet of the intersection of two or more streets.

    D.    Open or lattice-enclosed fire escapes, fireproof outside stairways, and balconies opening upon fire towers projecting into a yard not more than four feet, six inches, and the ordinary projections of chimneys and flues may be permitted by the building inspector.

    E.    For the purposes of side yard requirements, a two-family dwelling shall be considered as one building occupying a single lot.

    F.    An open, unenclosed porch not more than one story in height, or paved terrace may project into the required front yard for a distance not exceeding ten feet. An enclosed vestibule containing not more than forty (40) square feet may project into the required front yard for a distance not to exceed four feet.

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

    H.    When forty (40) percent of a frontage is developed with two or more buildings, then the depth of the front yards heretofore established shall be adjusted in the following manner:

    1.    When the building furthest from the street provides a front yard no more than ten feet deeper than the building closest to the street, then the average depth of the front yard for such frontage shall be the minimum depth of front yard for new buildings in such block.

    2.    When the above is not the case, and the lot is within one hundred (100) feet of an existing building on each side, excluding, however, buildings on corner lots which front the intersecting street, then the depth of the front yard shall be determined by a line drawn from the closest front corners of these two adjacent buildings.

    3.    When neither subsection (H)(1) or (2) of this section is the case and the lot is within one hundred (100) feet of an existing building on one side only, excluding, however, buildings on corner lots which front upon the intersecting street, then the depth of the front yard shall be the same as that of the existing adjacent building.

    4.    In the application of the above paragraphs, the adjusted depth of the front yard need not exceed forty (40) feet in C-2 general business districts.

    I.    In all zoned districts in the City, a triangular open space at the intersection of streets at a corner lot, free from any kind of obstruction to vision between the heights of three (3) and twelve (12) feet above the established street grade shall be maintained.  The street grade shall be measured at the intersection of the center lines of the intersecting street pavements.  The triangular space  shall be determined and defined by a diagonal line connecting two (2) points on the back of the curbs where the streets at the intersection have curbs or from outside of pavement where an intersecting street does not have curbs.  The two (2) points shall be determined and defined by a prolongation of a line extending from the point of tangency (where a straight line of the curb or street pavement intersects the point of the curve where the street or curb changes to a radius at the intersection) to intersect a similar prolongation of the curb or street pavement of the intersecting street to the point where the two (2) line extensions intersect.  From that point of intersection, the two (2) points for locating the diagonal line is established by measuring back and away from the point of intersection, 15 feet or the distance required to arrive at the point of tangency where the straight line of the curb or street pavement changes to a radius, whichever is the longer distance..

    J.    In single-family dwelling districts, R-2, R-3, R-4, R-5 and R-6, when seventy-five (75) percent of the frontage of a block on both sides of the street between two intersecting streets or between an intersecting street and a cul-de-sac has been developed with main building and accessory buildings with side yards less than that required by the dwelling district in which the property is situated, then the side yard requirement for any main buildings or accessory buildings in the block shall be the average side yard of all parcels of property in the block rather than the side yard set forth in the dwelling district in which the parcel of property is situated. In determining the existing side yard of any developed parcel, in order to compute the average herein required, the side yard of the main building on any developed parcel shall be used except that when an accessory building exists with a smaller side yard than the main building has, the side yard shall be taken as being the average between the side yard of the main building and the side yard of the accessory building.

    K.    No ground-mounted satellite earth station shall be located in any front or side yard, but may be located in the rear yard. No part of any ground-mounted satellite earth station, including the hard-surface (concrete) slab or other substructure on which it is situated, shall be located closer to any lot line than the total height of said earth station or, in any case, closer than ten feet to any lot line or easement; provided, however, that with respect to easements, this requirement may be waived if the owner or entity having beneficial use of such easement has granted written permission to encroach thereon. (Ord. 594 § 3, 1985; prior code § 40-10-2(C))