Open-lattice enclosed fire escapes, fireproof outside stairways, balconies opening upon fire towers and the ordinary projections of chimneys and flues may be permitted by the Building Official for a distance of not more than 3.5 feet into any side or rear yard and where the same are so placed as not to obstruct light and ventilation.
Any uncovered, open deck or porch shall have the same rear and side setback requirements as provided for accessory buildings under Section 25B of this chapter whether or not such deck is attached to the main building; all other setbacks shall be as follows:
Covered decks and porches, both enclosed and unenclosed, are considered part of the principal structure for determining setback requirements, including setbacks required for accessory buildings.
A covered or uncovered porch which is placed in front of the main entrance of the principal building and which is not more than 4 feet wider than the entrance, may project into a required front yard a distance of not more than 6 feet. A front entrance porch or deck or a front yard porch or deck may not be higher than the first floor entrance to the building.
An apparatus needed for the operation of active and passive solar energy systems may also project into required yards, including but not limited to, overhangs, movable insulating walls and roof, detached solar collectors, reflectors, and piping.