You have already been asked several times in different places what you always want to store. Maybe you could explain your thoughts, for example, why this storage room? Why do you find it important? I would find it good if you put the washing machine/dryer there.
And again ... enlarging here a little, shrinking there a little does not create a better floor plan. The office downstairs is already suffering from the door being pushed into the corner of the room.
Your budget suffers from the fact that you finance about 37 sqm of living room out of 194 sqm, of which the dining area is only intended for guests. Hallways with stairwell total around 26 sqm and that with
550 k through 194 sqm = 2835 euros INCLUDING equipment ... that just doesn't add up at all
And why consider between heat pump and gas heating? What about photovoltaic?
Yes, it would be good to have the washing machine or dryer in the storage room upstairs, but that probably doesn't fit, so we are making the storage room upstairs smaller so that we have a slightly larger bedroom.
The ironing board, decorations, and such small items should go into the storage room upstairs. Otherwise, we can't think of much else.
The utility room downstairs is important to us so that the washing machine and dryer are there and there is space for two drying racks.
The door in the office at the back will be removed. A window will be installed there.
I have to honestly say, we haven't thought too much about the budget. We inherited a lot and are flexible here.
It is important that we get the maximum out of this plot and since we only want to build once, we want to think about everything now.