No shrubbery, hedge or other natural growth, fence or wall over three feet higher than the apex at the center line of the street shall be located within the triangular area shown shaded in Sketch A (below) at the intersection of two streets, nor shall the limbs or foliage on any tree obstruct vision or be permitted to grow nearer to the ground than eight feet where such limbs or foliage overhang or are over or upon land within the triangular area as shown in Sketch A.

No swimming pools shall be located within the front yard of any residential or commercial use.

An unroofed surface or patio which is not more than one foot above ground level or an arbor, open trellis or flagpole is permitted in a required setback. An open fire escape, deck or unroofed porch or terrace which is more than one foot above ground level may project not more than six feet into a required rear setback.

An awning or movable canopy may project not more than 10 feet into a required setback; cornices or eaves may project not more than 18 inches into a required setback.

A fence or wall no more than three feet in height is permitted along any lot line and no more than six feet in height along that part of any lot line behind the required front yard. A fence or wall over six feet in height is permitted to a maximum of 10 feet, provided that it is set back from the lot line a distance equal to 2/3 of the setback.

Accessory buildings such as storage sheds constructed on adjacent lots with the written consent of all abutting owners may be located along the common side lot line or rear lot line, provided that the accessory building has a floor area of less than 100 square feet and an exterior height of no more than nine feet.

Rooftop bulkheads, elevator penthouses, water towers, fire towers, hose towers, cooling towers or air-conditioning or heating equipment, provided that such features shall not occupy, in aggregate, more than 10% of the area of the roof of the building and are set back from the edge of the roof at least one foot for each one foot by which such features exceed the maximum height otherwise specified for the district in which they are located. All mechanical equipment located on the tops of buildings shall be visually screened.

Parapet walls or cornices which do not exceed the maximum height requirement for the district in which they are located by more than four feet.

Solar energy systems, provided that such systems shall be erected only to the height necessary to accomplish the purposes they are intended to serve.

An outer court shall be at least 20 feet wide, as wide as its depth or as wide as the height of the highest wall adjoining said court, whichever is the greatest.

An inner court shall be at least 50 feet in the least horizontal dimension. Two open and unobstructed passageways, each at least 14 feet high and 12 feet wide, to permit access by fire-fighting equipment shall be provided at ground level to any court.

The distance between two principal buildings on the same lot shall be no less than the height of the taller building.

The distance between a principal building and an accessory building shall be no less than the height of the accessory building but in no event shall be less than 15 feet.