(A) The area in a side or rear yard shall be open and unobstructed from the established grade, or from the finished grade if higher than the established grade, to the sky. However, ordinary projections such as window sills, belt courses, cornices and other ornamental features may project not more than four inches. When the wall of the building is not within five feet of the lot line and the building is not over two and one-half stories in height, the cornice or eaves may project not more than two feet into such yard.
(B) An open iron fire escape may project not more than four feet into a side yard or rear yard.
(1956 Code Sec. 1319.07)