Architectural top vs honest height
Changsha IFS Tower T1 is marketed at 452m. The highest floor a person can stand on - the highest occupied floor - is at 431m. The gap between those two numbers is 21.0m of structure that no occupant reaches.
That gap is the vanity height. As a percentage of architectural top, it is the Vanity Ratio: 4.7%.
In the Honest 100,Changsha IFS Tower T1 ranks #16 by occupied height.
Vanity context
A Vanity Ratio of 4.7% places Changsha IFS Tower T1 in the near-zero vanity category. Almost all of its architectural height is occupiable - a rare outcome in tall building design.
Comparable buildings
In context
Sources and methodology
Height data sourced from Wikipedia (CC-BY-SA). Vanity Ratio calculated as (Architectural Top - Highest Occupied Floor) / Architectural Top. See the full methodology.
Per-field source notes
- architectural_top_m
- Wikipedia - 452m
- roof_height_m
- Wikipedia - 452m (no antenna; roof = top)
- highest_occupied_floor_m
- Wikipedia - highest occupied floor at 431m (floor 94)
- hat_factor_pct
- Calculated: (452-431)/452 = 4.7%