§ 16.21. Angle of light obstruction for C-2, C-3, C-4, RPO, I-1, and I-2.  


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  • The angle of light obstruction places limitations on the vertical angle within which buildings may obstruct light, thereby controlling the amount of sunlight and daylight at ground levels, assuring better air circulation and improving light on the exterior of buildings. In the RPO district, no building, except churches, hereafter erected or altered which abuts a residential district shall extend above an inclined plane established by an angle of light obstruction of 45 degrees along any lot line. Such a plane shall be interpreted for the street side as intersecting a horizontal plane at the centerline of any abutting street at the level of the curb nearest any point on a wall of the building facing on each side street; for other boundaries it shall be interpreted as intersecting a horizontal plane at the natural ground level along the required rear yard line of the adjacent lot, the rear and the required side yard line of the adjacent lot to the side at the nearest point on the rear or side wall of the building. The required width of a side yard according to the angle of light obstruction may be reduced by one-fourth if the planes of all walls facing the side lot line intersect such lot line at an angle of not less than 35 degrees.