§ 155.178 YARD REGULATIONS; PROJECTIONS; OPEN SPACE.
   (A)   Required yards. 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 projection of sills, belt courses, cornices, and ornamental features projecting not to exceed 12 inches.
   (B)   Fire escapes in rear yard. Open lattice-enclosed fire escapes, fireproof outside stairways, and balconies opening upon fire towers, and the ordinary projections of chimneys and flues into the required rear yard may be permitted by the Building Inspector for a distance of not more than three and one-half feet where the same are so placed as not to obstruct light and ventilation.
   (C)   Porches in front yard. An open unenclosed porch or paved terrace may project into the required front yard for a distance not exceeding ten feet. An enclosed vestibule containing not more than 40 square feet may project into the required front yard for a distance not to exceed four feet.
   (D)   Terraces. 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 yard, provided these projections be distant at least two feet from the adjacent side lot line.
   (E)   Multiple-family dwelling side yard. For the purposes of the side yard regulations, a two- family dwelling, or a multiple dwelling, shall be considered as one building occupying one foot.
   (F)   Commercial buildings on single lot. Where a lot or tract is used for commercial or industrial purpose, more than one main building may be located upon the lot or tract but only when such buildings conform to all open space requirements around the lot for the district in which the lot or tract is located.
   (G)   Residential, institutional. In the event that a lot is to be occupied by a group of two or more related buildings to be used for residential, institutional, or hotel purposes, there may be more than one main building on the lot; provided, however, that open space between buildings that are parallel or within 45 degrees of being parallel, shall have a minimum dimension of 20 feet for one-story buildings, 30 feet for two-story buildings and 40 feet for three-story buildings.
   (H)   Minimum open-space width. Where an open space is more than 50% surrounded by a building, the minimum width of the open space shall be at least 20 feet for one-story buildings, 30 feet for two-story buildings and 40 feet for three-story buildings.
   (I)   Dwellings above other uses, side yard. No side yards are required where dwelling units are erected above commercial and industrial structures.
   (J)   Front yard adjustments. The front yards heretofore established shall be adjusted in the following cases:
      (1)   Where 40% or more of the frontage on one side of a 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 existing buildings; or
      (2)   Where 40% 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 above, then:
         (a)   Where 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; or
         (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.
(Ord. 94-1, passed 1-17-1994) Penalty, see § 155.999