@jpg - yes, I also find the 1m wide long hallway extremely narrow. It should be 1.3m at least.
I don’t want to harp on it. But I find it so hard to get off the saddle ;): even if it becomes a 2-meter-wide closet, the basic desire is still to be welcomed by the house. I mean, we’re not talking about a cheap 109sqm house where every meter is used, nor about an “I don’t care where and how the rooms are” attitude, nor are we talking about a builder for whom daylight is quite unimportant. And we’re not talking about a farmstead or any other type of property that drives someone daily through a sluice because of the dirt, where they first have to leave their stuff. Just look at the ground floor. And there the stubbornness to build a sluice at all costs – no matter what comes out of it – stands in the way of a nice entrance. “If it doesn’t fit, it will be made to fit” – regardless of whether one actually wants it like that in execution. As a closet, the sluice has potential. The OP can slowly also give up on his basement, which is not in the budget anyway :D