What is the building height per IBC definition?

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Gang Chen

May 30, 2022 17:18

What is the building height per IBC definition?

Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)

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  Gang Chen June 01, 2022 04:26

  Per IBC, the building height is defined as the vertical distance from the grade plane to the average height of the highest roof surface.

  The grade plane is the reference plane representing the average grades adjoining the exterior walls of the building. The grade of the reference plane is established by the average grades of the lowest points between the exterior wall and the property line, or a line 6 feet from the building if the property line is more than 6 feet from the building.

  Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)

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  Fulan Zhang June 09, 2022 12:42

  In the DC area, we have two types of building heights. One is the building height based on IBC, and the other is by Zoning. 

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  Gang Chen June 11, 2022 03:32

  Yes, another important concept is zoning code height, it is the maximum building code height allowed by Zoning code. Zoning code height definition varies from city to city. A building must comply with the most restrictive requirements of the building code height or the zoning code height.

  Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)

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