Is financing a new single-family house feasible?

Congratulations on the house and thank you for the feedback.

The forum can sometimes be overly cautious and almost arrogant, so you have to filter a bit for yourself what really applies to you (but I can also understand if the fun of exchange is sometimes lost because of that). Sometimes it can be helpful and you think to yourself "that's true, I hadn't thought of that," but sometimes you also come away thinking "I consider that exaggerated"...

I am happy that it worked out for you! And thanks again for the feedback.

Congratulations on the house! Basically, the numbers are of course interesting for the readers now.

We will repay about €1450 monthly.

And how high are the interest rates?

It is not meant to sound malicious,

But it does. The mentioned Mallorca vacation is also malicious.

unfair, which was accused of me.

It has nothing to do with fair or unfair when you warn someone, even if the danger cannot be assessed and can later be considered small. Instead, it is wicked to let someone walk into a sharp knife and say beforehand that it is surely blunt.

You would have preferred to hear the latter and would have considered it fair. People are just that different.

We will amortize about €1450 monthly.

It would also be interesting for subsequent readers to know how much you actually financed in the end at what interest rate (it was originally planned to be €440,000 at a time when interest rates had just risen sharply) and how much you have actually spent in total. Because there were doubts both about the affordability of the installments and about the planned costs.