In addition to all yard regulations specified in the official schedule of district regulations and in other sections of this Part, the provisions of subsections (a) through (f), inclusive, shall be used for interpretation and clarification.
(a) Setback Requirements for Corner Buildings.
On a corner lot, except in the B-3 District, the principal building and its accessory structures shall be required to have the same setback distance from all street right- of-way lines as required to have the same setback distance from all street right-of- way lines as required for the front yard in the district in which such structures are located.
(b) Visibility at Intersections.
On a corner lot, except in the B-3 District, nothing shall be erected, placed, planted or allowed to grow in such a manner as to materially impede vision between a height of two and one-half and ten feet above the centerline grades of the intersecting streets within a triangle 20 feet from the intersection of the right- of-way lines.
(c) Yard Requirements for Multi-Family Dwellings.
Multi-family dwellings shall be considered as one building for the purpose of determining front, side and rear yard requirements. The entire group as a unit shall require one front, one rear and two side yards as specified for dwellings in the appropriate district. Each individual building shall meet all yard requirements for the appropriate district as though it were on an individual lot.
(d) Side and Rear Yard Requirements for Non-Residential Uses Abutting Residential Districts.
Non-residential buildings or uses shall not be located nor conducted closer than twenty-five feet to any lot line of a residential district, except that the minimum yard requirements may be reduced to fifty percent (50%) of the requirement if acceptable landscaping or screening approved by the Zoning Inspector is approved.
(e) Architectural Projections.
Open structures such as porches, canopies, balconies, platforms, carports, covered patios and similar architectural projections shall be considered parts of the building to which attached and shall not project into the required minimum front, side or rear yard.
(f) Exceptions to Height Regulations.
The height limitations contained in the official schedule of district regulations do not apply to spires, belfries, cupolas, antennas, water tanks, ventilators, chimneys or other appurtenances usually required to be placed above the roof level and not intended for human occupancy except where the height of such structures will constitute a hazard to the safe landing and take-off of aircraft at the airport.