Floor plan of corner terraced house in planning - suggestions for changes?

Yes, of course you can't create the room downstairs on the ground floor, which is probably why there's little response to it.

That can be done with simple risers as well.

Simple risers also work.

What do you mean by that? If she wants an open staircase, then definitely not risers, right?

How do you mean that? If she wants an open staircase, then surely no risers, right?

To be honest: I really can’t follow the OP when reading. She writes too confusingly for that. So I assume that simply a standard staircase is being planned – which is usually open (I know enough construction specifications). And then the option would be risers.

Honestly: I really can't follow the OP when reading. She writes too confusingly. So I assume that it is simply a standard staircase planned - which is usually always open (I know enough construction service descriptions). And then there would be the option of risers.

Sorry for my confusing posts, I am trying to write better, I am writing from my phone and that makes it a bit more complicated. I’m sending a picture from our construction service description, showing how the staircase will be. Yes, regarding using the space under the staircase, it’s not possible, I just didn’t manage to comment on that yet, but I was still planning and considering.... I want to keep the staircase (open) and honestly, I also didn't quite understand how the staircase can be changed so that the door can be big enough to fit there.

Sorry for my confusing posts,

That's okay :)

how the staircase can be changed so that the door can fit in there big.

That would have to be closed up by the drywall installer. Additionally, the steps must be closed with risers (these are the vertical boards).
You basically gain a storage room.
In the living area, like in your case, an open staircase looks nicer.

No problem :)

That would have to be closed off by the drywall installer. Additionally, the steps need to be closed with risers (those are the upright boards). You basically gain a storage space. In the living area, as it is with you, an open staircase looks nicer.

Yes, and because sometimes the appearance admittedly matters more to me than the practical aspect, I definitely want to have the open staircase, so the staircase idea actually doesn’t work? The staircase should have a gray tone, which one I don’t know. Someone upstairs was surprised... I want the whole house to be white and gray. So white doors with gray handles, gray wooden staircase, I saw a black staircase at some acquaintances, that looked nice too, but you can see all the dust on that, gray would be better there. But that is a matter of taste, first I have to clarify the door situation without taking another staircase. Appointment with the architect is on Wednesday, until then I have time...