So I just skimmed through it. Basically, I can congratulate you on the purchase of the large plot. Under no circumstances should you divide it. You can never have enough space, you will realize that over the years.
You need space for the house, for outbuildings, for a utility garden, a greenhouse, a pool, a carport, a wood storage, a few nice fruit trees, etc. Not everything at once, but over time certain desires will develop. I myself have 1800 sqm with 4 buildings on it and I would like even more. Actually, I am still missing 1000 sqm of meadow at the back.
The houses with 500 sqm plots have no space around them.
You can build a large bungalow with a large garage attached and don’t need an expensive basement. A technical building for heating and storage spaces is also quite nice. And all without feeling cramped.
For 200,000 euros you can build yourself a palace. That is really no art. And don’t let anyone tell you otherwise. You don’t even have to touch a single brick.
I would roughly make the following calculation if you contract out the trades freely.
Bungalow without basement.
Shell with foundation slab 60,000
Roof with roof frame 40,000
Heating and sanitary 20,000
Windows 10,000
Electrical 10,000
Plaster and paint 20,000
Doors, tiles, floors 10,000
30,000 for what I forgot.
It will probably be considerably cheaper. There are plenty of craftsmen, you just have to find the right one. If you yourself aren’t one and don’t speak their language, it is indeed difficult, yes.
If you are creative, you can of course manage something like this.