Quote:
Originally Posted by pianowizard
Is it cheaper to build two 700-900 ft skyscrapers than one 1,200-1,500 ft supertall of the same total square footage? I would think the latter is cheaper than the former.
Merging the two buildings into a supertall would be great news!
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Construction costs start rising exponentially as you get above about 850 feet. If you're building the same square footage, it is no doubt cheaper to build two shorter buildings in most cases.
Where it may become less expensive is the physical shape of the towers - you need an efficient facade to floor area ratio to make it worthwhile.
This is partially why you tend to see more rectangular and straight towers in resi settings than square or with many ins/outs. The other reason is unit layouts, but facade area ratios are important from a building cost standpoint.
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