The Council on Tall Buildings and Urban Habitat (CTBUH) has changed the way it measures building height.
Announced on November 17, the Chicago-based organization now includes below-grade, open-air pedestrian entrances in its calculations; previously, measurements were made from the sidewalk outside the main entrance. CTBUH also eliminated a “height to roof” category due to increased use of spires, parapets, and other features.
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