82-323 - Permitted obstructions within required setback areas LAST AMENDED 12/5/2024 Above a height of 85 feet above #curb level#, a dormer shall be allowed as a permitted obstruction pursuant to paragraph (b) of Section 23-413 (Permitted obstruction in certain districts) provided that, along a #wide street#, or on a #narrow street# within 50 feet of a #wide street# the #building# shall contain special architectural expression lines at a height of 85 feet above #curb level#.