Final floor plan planning - Rose-colored glasses

You have received enough criticism. If that is what you want, then build that way. Hopefully you will remain active here in the forum. Conversions and additions are quite rare here. You will gain experience that new builders have nothing to do with.

Good luck and a trouble-free build. When will it start?

You have received enough criticism. If that's how you want it, then build it that way. Hopefully you will remain active here in the forum. Conversions and additions are quite rare here. You will gain experience that new builders have nothing to do with.

Good luck and trouble-free building. When will it start?

Yes, here in western Austria, additions are now very common because land is scarce and very expensive.

Here too and probably even more. Usually, a room is simply added downstairs and upstairs, a few dormers, and that's it. Raising the roof structure is already rare. In cities and metropolitan areas, densification will probably be a topic everywhere in the coming years. Whether it will affect private homeowners, however?

yes, it is a lot of money. But significantly cheaper than building new. I could also buy an apartment in the neighborhood – but then I would only have 80 sqm for €550,000.

I believe that here a few numbers are quickly thrown around and then decided based on how you have already planned it out beforehand. I just don’t want to believe that there is only this one and only feasible solution for such a life situation and everything else would be nonsense. Of course, you can decide everything for yourself, you even have to, but you don’t seem to really review the constructively meant criticisms openly for yourself. The "tricky" questions, that is also those that can drastically affect life quickly (unlike an eaves or a tiny bathroom), you don’t answer. Of course, you don’t have to either, but I understood it differently, unless the "rose-colored glasses" you mentioned were exclusively focused on the balcony, bathroom, and other small things. If you scroll back here, you will be able to see that you have immediately or even not at all answered almost all points where you were pointed to the "suspected rose-colored glasses" ... so the possibly used glasses apparently you would like to continue wearing them that way. Nobody here begrudges you anything, but somehow I have the impression you might suspect that.

Here in Berlin, "Dachgeschossrohlinge" are often sold. At most, there is a building permit or a preliminary inquiry, and the rest is the buyer's responsibility. These are supposed bargains, but in the end, they are projects costing hundreds of thousands to millions...

I can also buy an apartment in the neighborhood – but then I only get 80 sqm for 550,000 €.

the room layout is how we imagine it.

You can also surely drive 20 minutes by car and then get a bigger place. Now you put the money on the table, are totally restricted because the parents-in-law don’t want any change, call it a chalet, and the visitors bump their elbows when wiping their behinds and the children will run wet into the kids’ room because they can’t properly dry off in the bathroom.

Turn the upstairs into a granny flat, then the parents-in-law will still have some rental income they can gladly transfer to you for special repayment.