The provisions of Section 1102 of IEBC are adopted by reference with the following modifications:
1. Revise Section 1102.1 to read:
"1102.1 Height limitations.
An addition shall not increase the building height and number of stories above grade plane of an existing building beyond those allowed under the applicable provisions of Chapter 5 of the Chicago Building Code for new buildings."
2. Revise Section 1102.2 to read:
"1102.2 Area limitations.
An addition shall not increase the building area of an existing building beyond that allowed under the applicable provisions of Chapter 5 of the Chicago Building Code for new buildings.
Exceptions:
1. In-filling of existing floor openings and construction of mezzanines or lofts shall be allowed regardless of building area limitations.
2. Adding nonoccupiable appendages, such as elevator and exit stairway shafts, shall be allowed beyond the building area allowed by the Chicago Building Code."
3. Revise Section 1102.3 to read:
"1102.3 Fire protection systems.
Existing fire areas increased in floor area or volume by the addition shall comply with Chapter 9 of the Chicago Building Code."
(Amend Coun. J. 2-19-20, p. 14473, Art. IV, § 22)