alt Hacker NewsA lot of buildings now require at least two stairwells for buildings over three stories. There's talk in Massachusetts of easing that requirement the requirement to four or six stories, which is more common worldwide and could help build more affordable housing.
https://www.bostonglobe.com/2025/09/28/opinion/stairwells-bu...
Note: This requirement is a contributor to US apartments being ugly. Depressing line corridors, and only one side of windows unless you're in the corner. Other countries don't have the double stairway requirement, and are prettier as a result.