True. Ultimately we can't know until we quantify the costs for high-rise apartments. All I'll say is that, yes labor's an input. You have to quantify that co

True. Ultimately we can't know until we quantify the costs for high-rise apartments. All I'll say is that, yes labor's an input. You have to quantify that cost per square foot. But, given the number of property developments that have been attempted in the Bay Area and blocked, my (guess) is the economics stack up. Otherwise, developers wouldn't have attempted it.