Doesn't the terrace now also take the last bit of light in the basement?
The foyer on the ground floor is too large. The stair - WC area looks like a leftover piece.
I don't like the upper floor at all.
Children's rooms are different sizes. I find the small children's room too small for the total living area.
You allow yourselves almost 24 sqm for sleeping + dressing. Only for storing clothes and sleeping.
The children have 14 sqm and 17 sqm respectively for sleeping, clothing, playing, meeting friends, homework, learning.
I don't like the geometry of the upper floor. Especially the hallway.
Don't be mad at me, but the floor plan simply seems to me like a sequence of wishes connected by an awkward hallway/foyer. As a result, some houses with significantly fewer sqm have similarly sized living spaces that can be inhabited more ergonomically.
Also consider that earthworks cost money. Every shovel of excavation has to be removed. Every cubic meter to fill must be delivered.
Every outdoor stair step must be kept free of snow and ice.
Parents-in-law have a long outside staircase. Every winter a chain is hung in front of it so that no one falls. The postman rings the bell at the bottom of the stairs, children, children-in-law, and in winter everyone who needs to enter the house takes the way through the basement.
My parents fitted their outside staircase with a huge glass roof so that it is protected from the weather. Effective, visually unusual, costly.