Remember to Duck
You’ll end up with a hunched back if this is a room that you go into often, considering how far down you have to duck just to get into it. We’re wondering who forgot to consider average height what placing this staircase. Luckily, this is another problem that could possibly be an easy fix.
However, we don’t suggest you make this a DIY project. Hire a contractor. There are one of two options that could be done here. Take out this staircase and add a spiral staircase into the small space, or remove part of the ceiling. The homeowner must be pretty annoyed at the money he’s about the spend.