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// CODE SNIPPET

509.3 Area Limitations

Building Code 2021 of Illinois > 5 General Building Heights and Areas > 509 Incidental Uses > 509.3 Area Limitations
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Incidental uses shall not occupy more than 10 percent of the building area of the story in which they are located.

Related Code Sections


1102.2 Additions, Area Limitations
An addition shall not increase the area of an existing building beyond that permitted under the applicable provisions of Chapter 5 ...
Existing Building Code 2018 of Illinois > 11 Additions > 1102 Heights and Areas > 1102.2 Area Limitations
1102.2 Additions, Area Limitations
An addition shall not increase the area of an existing building beyond that permitted under the applicable provisions of Chapter 5 ...
Existing Building Code 2021 of Illinois > 11 Additions > 1102 Heights and Areas > 1102.2 Area Limitations
1510.1.1 Roof Assemblies and Rooftop Structures, Area Limitation
The aggregate area of penthouses and other enclosed rooftop structures shall not exceed one-third the area of the supporting roof deck. Such ...
Building Code 2018 of Illinois > 15 Roof Assemblies and Rooftop Structures > 1510 Rooftop Structures > 1510.1 General > 1510.1.1 Area Limitation
1511.1.1 Roof Assemblies and Rooftop Structures, Area Limitation
The aggregate area of penthouses and other enclosed rooftop structures shall not exceed one-third the area of the supporting roof deck. Such ...
Building Code 2021 of Illinois > 15 Roof Assemblies and Rooftop Structures > 1511 Rooftop Structures > 1511.1 General > 1511.1.1 Area Limitation
2604.2.3 Plastic, Area Limitation
The interior trim shall not constitute more than 10 percent of the specific wall or ceiling areas to which it is attached ...
Building Code 2021 of Illinois > 26 Plastic > 2604 Interior Finish and Trim > 2604.2 Interior Trim > 2604.2.3 Area Limitation
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