cellar hatches doors open in?

we have one of those Bilco-style double door hatches over the door to our basement in a limestone. However, we are building a set of stairs into our garden from the first floor that will make it impossible to open the hatch doors out. anyone have any suggestions on what to do? do they make doors that open in? going without a hatch doesnt seem like a good idea because theres no drain at the bottom of the stairs and the basement could flood when it rains. i’ve thought of a horizontal hatch, but that wouldn’t entirely cover the doors and would still leave a gap between the door and hatch. anyone have any ideas on what to do?
many thanks.

By Bonkers |