Unless a maximum height regulation is stated in § 27-305, Use Regulations, for a specific use, no principal building or structure shall exceed 35 feet and 2 1/2 stories in height. For any building or structure accessory to a principal building or structure the maximum height shall be 14 feet and one story. For exceptions, refer to Uses A1(3) [§ 27-305, Subsection 1, Use A1(3)], I6(2)(c) [§ 27-305, Subsection 9, Use I6(2)(c)], 18(3) [§ 27-305, Subsection 9, Use I8(3)] and § 27-1910.