(A) Where the average slope of a lot is greater than one foot rise or fall in seven feet of horizontal distance from the established street elevation at the property line, one story in addition to the number permitted in the district in which the lot is situated shall be permitted on the downhill side of any building.
(B) Height limitations set forth elsewhere in this chapter may be increased by 100% when applied to the following: chimneys; cooling towers; elevator bulkheads; fire towers; monuments; penthouses; water towers; stacks; stage towers; or scenery lofts; tanks; ornamental towers and spires; wireless towers; or necessary mechanical appurtenances usually required to be placed above the roof level and not intended for human occupancy.
(2006 Code, § 11.20)