Bait offer from the internet, to which one can gladly add another 50,000.
Where do you see the extra costs of €50,000? I understand that a kitchen still needs to be purchased and floors and walls need to be done. But I could take care of that myself with the help of relatives; I wouldn't come up with €50,000 there.
House Zinnie with what I consider necessary special equipment:
Base price €210,950
Ground floor +€4,200
Ground floor (alternative with guest WC)
Ground floor (alternative): storage room under the stairs
Upper floor +€990
Upper floor (alternative): storage room
Attic +€1,950
Attic (standard): two rooms
Windows +€475
Lockable window handles on ground and upper floors
Lockable terrace door on the ground floor
Extras +€22,100
Carport
KfW 70
Decentralized ventilators
Total
€240,665
That would be the minimum extras which I consider necessary. Guest WC and a storage room under the stairs (with a 7 sqm kitchen and otherwise hardly any space for cleaning supplies and a crate of drinks).
An additional storage room on the upper floor where the washing machine fits.
In the attic then 2 rooms, because altogether 4 sqm of storage space is too little for a house.
Then lockable olive handles for windows and terrace door, ventilation system as a technology and KfW 70.
Whether instead of the heating underfloor heating will be installed, I doubt.
An adequate bathtub 180/80 (standard is 170/75) also costs 1000-2000. Aluminum rails in the bathroom instead of white plastic also costs money, and yes: for that price you can’t necessarily expect tiles that are in line with current trends. Wellness bathroom is also such a term... usually such bathroom equipment is far from wellness and for the builder the listed towel warmer is enough.
You can calculate materials for floors and walls and should also include ancillary costs (adhesive, tools, skirting board and waste).
The wall condition is not explained either; it could be well that you still have to putty or sand yourself, for that you should look into the construction service description, but that tip was already given above.
Maybe also pay attention to the quality of the doors. Foiled is the cheapest and doesn’t have to last long; accordingly, there are window sills made of plastic. Do you want those???
Then come the outdoor facilities (which are moderate), what about the entrance platform?
Surely with 22 you don’t have the big demand like a fellow in his forties who has some living experience and has raised his standards, but you also have to think about the resale value and not always install (have installed) the cheap standard.
Then we have the €50,000 (plus/minus)
But I wonder: why does someone who just recently left the nest want to squeeze in between families with a house width of roughly 4.5 meters?