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508.2 Accessory Occupancies
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Accessory occupancies shall be individually classified in accordance with Section 302.1. The requirements of this code shall apply to each portion of the building based on the occupancy classification of that space.
The allowable height and number of stories of the building containing accessory occupancies shall be in accordance with Section 504 for the main occupancy of the building.
The allowable area of the building shall be based on the applicable provisions of Section 506 for the main occupancy of the building. Aggregate accessory occupancies shall not occupy more than 10 percent of the floor area of the story in which they are located and shall not exceed the tabular values for nonsprinklered buildings in Table 506.2 for each such accessory occupancy.
No separation is required between accessory occupancies and the main occupancy.
Exceptions:
- Group H-2, H-3, H-4 and H-5 occupancies shall be separated from all other occupancies in accordance with Section 508.4.
- Group I-1, R-1, R-2 and R-3 dwelling units and sleeping units shall be separated from other dwelling or sleeping units and from accessory occupancies contiguous to them in accordance with the requirements of Section 420.
Related Code Sections
507.1.1 General Building Heights and Areas, Accessory Occupancies
Accessory occupancies shall be permitted in unlimited area buildings in accordance with the provisions of Section 508.2, otherwise the requirements ...
Building Code 2021 of Illinois > 5 General Building Heights and Areas > 507 Unlimited Area Buildings > 507.1 General > 507.1.1 Accessory Occupancies
507.1.1 General Building Heights and Areas, Accessory Occupancies
Accessory occupancies shall be permitted in unlimited area buildings in accordance with the provisions of Section 508.2, otherwise the requirements ...
Building Code 2018 of Illinois > 5 General Building Heights and Areas > 507 Unlimited Area Buildings > 507.1 General > 507.1.1 Accessory Occupancies
508.2 General Building Heights and Areas, Accessory Occupancies
Accessory occupancies are those occupancies that are ancillary to the main occupancy of the building or portion thereof. Accessory occupancies shall ...
Building Code 2021 of Illinois > 5 General Building Heights and Areas > 508 Mixed Use and Occupancy > 508.2 Accessory Occupancies
508.2 General Building Heights and Areas, Accessory Occupancies
Accessory occupancies are those occupancies that are ancillary to the main occupancy of the building or portion thereof. Accessory occupancies shall ...
Building Code 2018 of Illinois > 5 General Building Heights and Areas > 508 Mixed Use and Occupancy > 508.2 Accessory Occupancies
508.2.3 General Building Heights and Areas, Allowable Building Area
accessory occupancies shall not occupy more than 10 percent of the floor area of the story in which they are located and shall not exceed the tabular ...
Building Code 2018 of Illinois > 5 General Building Heights and Areas > 508 Mixed Use and Occupancy > 508.2 Accessory Occupancies > 508.2.3 Allowable Building Area