Some suggestions:
- move the staircase 50-100 cms to the left; you get more space for dining & bedroom

- replace stairs with open staircase, maybe a hanging one

- move fireplace to the end of the wall and replace with something more open, maybe like these

I really like your design, so there is very little to say. What I would have changed, probably for a different climate, is to move the fireplace downstairs. It looks a bit heavy which could complicate the floor construction. But also, if you use it, all the heat will stay under the ceiling upstairs - and it could get very worm in a small room. If you move it downstairs, heat will also rise to upper floor. ok

..this suggestion is harder to apply because I should think a way to change the plan of the first floor without messing up completely its design

What a sweet little place! Congratulazioni AdeleAlli! Soon in real?

But you can also look at a smaller fireplace. We had a modern one installed a couple years ago, < 70 cm wide and builds only 40 cm from the wall (chimney) - and it still delivers 5kW - more than enough for your nice little house. ok

I personally like spiral staircases. In my opinion they are the best compromise to use as less space as possible and to have a most comfortable staircase.

I know that it is not the right place to ask it, but does someone know how to use staircase models downloaded from other sites? I tried to do that but the staircases that are not sh3d models already present does not leave the space upstairs,

In the third importation pane, you have to choose "Door or window" option.

I usually place the spiral staircases next to a wall. this wall partially replaces the handrail.
I love open constructions and therefore staircases without railing or handrail. but in real I would of course also install a bit more security, but not 50cm stone walls, but 25mm wood walls.

Put a cylinder (same height as the wooden wall) exactly on top the center of the stairs and on top of this cylinder you put some flowers... just an idea...

Hi bdfd,
thank you. Here are the plans of the various levels:

Second floor (3 childrooms and a master bedroom, with a bathroom which is still unfurnished)

The childrooms are two preteen rooms (one for a girl and one for a boy, and a toddler room).
...Bye

I see you really like tight space. I see a tiny kitchen with a dining table barely big enough for two people but why even try to squeeze in four bedrooms into this mini cottage? Is the studio on the first floor really necessary considering how tight the space is? Why not just use one of those bed room upstairs as a studio and tear down the studio on the first floor so that you have more open space ?

Hi,

Nice renderings.

You could choose an another stairs to keep space under stairs to put separate toilets.

Nice day.
.

I think this is a very cute little house. However... there seems to be a problem with the scale of the furniture. If you look at the beds in the bedrooms, they seem to be only about 150-160 cms long, instead of the more usual 200-210 cms. That makes the house appear much more spacious than it in reality is.