I always used to think that due to the cost of construction PSF these days developers needed to build a certain height in relation to width in order to make it worth while. Aka more floors for a smaller plot of land. I never even considered that the height was dependent on the width.
That thinking was the result of all the skinny towers going up. I just assumed they could do that anywhere.
Whatever math they’re using to determine how high to build, it seems to be essentially the same as was used for 1 Beekman at the other end of the block, since that one is also 23 floors. The lots are similar sizes (~5,000 sqft).
Rat extermination, and those associated bait notices, are required before any demolition in NYC. It doesn’t mean there was necessarily an “infestation”.