Town Of Boston City Zoning Code

Chimneys, flues, spires or belfries.

Elevator or stair bulkheads, roof water tanks or cooling towers, including enclosures, provided that such structures, in the aggregate, do not occupy more than 10% of the roof area.

Flagpoles, radio or television antennas, masts or aerials, located on a building and extending not more than 20 feet above the roof of such building.