The US has large apartment buildings, the problem is that there is not a whole lot of anything between 5-20 stories, and there is a construction premium for 20+ story buildings.
(And in the US it would be two staircases and 20 single story homes, specifically because building codes require two staircases to prevent a Grenfell-like disaster.
(And in the US it would be two staircases and 20 single story homes, specifically because building codes require two staircases to prevent a Grenfell-like disaster.