3303.16.1 Permit required. No worker shed, contractor shed, contractor office, or similar structure shall be installed until a permit for the shed or office has been issued by the commissioner in accordance with the requirements of Chapter 1 of Title 28 of the Administrative Code. Exception: A permit is not required for a worker shed, contractor shed, contractor office, or similar structure that does not exceed 1 story in height and 120 square feet (36.58 m2 ) in area, and further provided that the shed, office, or similar structure is located more than 30 feet (9144 mm) from another shed, or office, or similar structure.