This made a change from building over stair bulkheads. I have just finished building this under stair cupboard.
The job involved boxing in the electric and gas meters, and fuse box, and building a set of cupboards and a large drawer unit to maximise the storage space. There is even a special section for an ironing board.
The front was set back so it didn’t make the hallway didn’t feel to narrow. All finished off with a set of shaker style doors and painted white.
If you want to create better use of the space under your stairs, I can help.