House Construction - What is financially feasible?

Yes, okay, that was nonsense. But the other one too. If 2,500 euros is a small income for an average earner, then no old soul in our rural area could build a house. And most people here still have to buy the land. Sorry. And:

Do you know how long they are paying off and whether they won’t have to give the house to the bank in 10 years?

=> I only know what these people have told me, of course they could all have lied to me. Possible. Most have borrowed about 150,000 euros, had about 50,000 aside, and then just put up a small house. I don’t know exactly how it went. But if you can’t build a house for 200,000 euros with today’s interest rates and a solid income, then I don’t know anymore.
=> Not to be misunderstood here, I don’t want to build with great difficulty, but I think we are talking about quite high sums if you have to earn the money. And I also can’t imagine that 20 years ago an "average earner" built a house for 500,000 marks.

We have just under 4,500 € available every month

Alone or with two people working?

Counter question: 120 sqm, simple equipment, no basement, single garage: ==>> What requirements would you have to meet then? 5,000 net income and 70,000 euros in personal contribution?? I mean that seriously.
P.S.: Who knows about tax classes? I estimate that through marriage my own capital would then increase by about 200 euros??

Others do not matter. Not how and when they built either. After all, you are ultimately responsible for your debts.

I am not claiming that it won’t work in your situation, but it can get tight. Keep a precise record of your income and expenses to see what is left each month. Then you will also better know what installment you can afford. Only then go to the bank. Living including a child with 500 € will never work, no way. That was already addressed above.

What you are completely missing are reserves for repairs or a new car. We alone have planned 200 € monthly for that. Probably even a bit more.

You have to approach the whole thing with maximum self-criticism. Convincing yourself with things like “others can do it too” doesn’t get you anywhere if it really comes down to the wire.

One more point you are overlooking:
Yes, interest rates are currently low. But building costs are significantly higher than 5-10 years ago.

Yes, the interest rates are currently low. However, the house construction costs are also significantly higher than they were 5-10 years ago.

That must be it. When I look at the prefabricated house catalogs, it's crazy what they want for them :-) So currently, with my income, I pay 800 euros in rent, save 800 euros, and have 900 euros left over. Out of that, 200 euros remain, the rest goes towards insurance, car, and living expenses. Okay, most of it goes for "living" :-))

hm, in the initial post you had paid-in equity of 35000... now 30000 Your "cash" is probably other liquid assets (unless you have the money under your pillow or in the sock), then it would have been 25000 in the initial post, now 20000. That is then equity. For calculations, the numbers really have to be correct!!!! Now then, to the reduced 20000 equity add the saved 30000 from the building society savings and the property of 55000 (or is that now worth less too?) That makes a total of 105000 euros equity. That’s something already. :) When you build a house, you look at the repayment, whether you can comfortably pay it off in a time of roughly XX years. And usually you pay more in repayment than rent for your own house. The way you come across and on top of that your numbers vary extremely, you should definitely check your numbers pedantically and exactly, whether it really is like that. Keeping a household budget has already been mentioned. With personal contributions through painting and laying floors you can just make about 10000, which will be missing in a financing. For your appearance at the bank and co it would be helpful to distinguish the few technical terms like equity and personal contributions. With terms like ash and moneten you will also be put into certain pigeonholes... maybe absorb some expression in public forums, then later the financing advisor will get a better picture of you - but just a tip on the side... That building a house is a serious matter, you can see from the sums... handling the subject flippantly has already cost some people their existence.

=>How many years do you pay there?

200,000 €; 2.5% interest (e.g.); 1,000 €; 10 years fixed interest period: 29.5 years with constant interest rates.

If the interest rate rises, it takes longer.

The home savings loans reduce the loan-to-value ratio and thus the interest rate of the normal loan. But watch out for the repayment rate of the home savings loans, which is usually quite high, meaning less remains for the normal loan. But the 7,000 € from the small one is probably rather uninteresting. If applicable, they might also have a bonus interest for non-utilization, then one should calculate what is better.