Building a house financially feasible or a pipe dream?

The banks' figures still lack any reality... That may serve you as a reference point, but if I can present a household ledger for 10 years without any gaps, and show where my money comes from and where it goes, then that should give the banker – if he is willing – significantly more "security" than any figure that lacks any basis.

That was once the case. Since the WIKR came into force last April, most bankers are actually bound by much more standardized processes. In other words, if the household calculation doesn’t work, or the life phase model fails, your household ledger won’t help you that much.

sorry, but with the income and the ever increasing amounts (now they are already talking about 450k and up) and 3 children who also cost money, this is increasingly becoming harakiri.

Especially since the parents would also have to participate. What if they refuse?

They have a right of residence in the house. You or the new buyer won’t get them out that quickly.

That was once. Since the WIKR came into force last April, most bankers are actually bound by clearly standardized processes. In other words, if the household budget doesn’t work, or the life phase model fails, your household book doesn’t help that much.

Yes, that may well be. Supposedly, it is meant to "protect" the customers.

I am aware that I cannot influence what banks calculate. However, I feel on the safe side because I know what I can afford – thanks to the household book. If the bank says "No" there – then that’s just how it is.

Yes, that may well be the case. It's supposedly meant to "protect" the customers.

I understand that I can't influence what banks charge. But I feel safe because I know what I can afford - thanks to the household budget book. If the bank says "No" - then that's just how it is.

completely legitimate. do you have siblings? if yes, do they also want a piece of the pie?

Siblings yes, but they have already been paid out.

They have enough pension to provide for themselves, cover the additional housing costs, maintain a car, and even finance a new car every 5 years...

Am I crazy? What kind of mileage do they have per year?

Anyone thinking at least somewhat economically buys a good used car and drives it until it falls apart. Ideally, in old age, that only happens after they themselves fall apart.

If you’re hesitating because you urgently need more space for the kids, but at the same time old debts from the previous renovation are still hanging over you and the beneficiaries of all this treat themselves to a new car every 5 years, then the priorities are skewed.

If I hadn’t taken over and renovated the house, it would be paid off now (for about 1-2 years), but the heating system would be broken, heating costs significantly higher, etc...

They wouldn’t have to pay rent, but they also wouldn’t live in a livable environment – or they would have sold the house and found something smaller

Or heating instead of cars... Were there no reserves for the maintenance of the house?

Yes. Sell the house and downsize. That doesn’t have to come with a reduction in quality of life, unless you think you are exclusively what you own.

It already sounds like you’d be the ideal son-in-law for your in-laws, sorry to say so. You received the house at exactly the right moment to take care of the livable environment with your money, which the two of them – unless their pensions are very low – should actually take care of themselves. But as I said, with low pensions you don’t finance cars on a five-year cycle...

It’s all no use, now you are a prisoner of your in-laws, whether voluntarily and happily is none of my business.

Economically, it simply culminates in the fact that you can only afford the necessary space expansion with difficulty and the option of new construction probably falls away because of the price. As a lover of improvisation, I would probably choose the extension as plan A. Plan B would be to buy an existing property, if possible and suitable. But with plan A, the old debts are blocking you, great... I would still try it via a bank change.