Capslock
Active Member
Not really if you consider that the core contains not only the elevators but all staircases, the plumbing, washrooms, kitchens, electrical rooms. I have worked in a couple of office towers downtown (concrete) and the ‘core’ is about 50% of the floor areas.
It may not look it, but most office cores are around 15% - 20% of the total floor area.
On a taller building, the range is greater, from about 25% of the floor area at low level due to the elevators passing through, to again about 15% or maybe slightly less at the higher levels. Eyeballing it, that's about where this one seems to sit. You can reduce this if you allow, say, a sky-lobby to transfer elevators halfway up a tower, but for much less than 300m, the extra space gained is rarely judged worth the reduction in the speed of getting to the highest 'premium' levels'.