New single-family house - realistic estimate of construction costs? Experiences?

I can already tell that some people really take the actually secondary topic seriously. We have a one-year-old child and not yet three. Yes, those would be nice, but we are far from that. Thanks to equality, both of us are able to earn money and share housework and family duties. My partner wanted to stay at home for two years and focus exclusively on the child, her decision. I have a 35-hour workweek, so other models are possible. Conversely, it was always clear that there would be no wedding. Accordingly, we can both live with that; otherwise, there would have been no child. In the worst case, the boundaries are clearly set. I have the house, she can save her money because she doesn’t pay rent or maintenance, and she has no loan obligations. I don’t see any unfair treatment there? With divorce rates above 40%, followed by bitter battles over assets, it would be rationally unwise to agree on joint financing. My partner shares this approach as well. In the end, otherwise it would be the lawyer, the state, and the new owner from a forced sale who earn. We both see the money much better invested in our son. We will now first plan the house more concretely and assign numbers to the positions. If we necessarily exceed the maximum set limit of 440,000€, I will not carry out the project but consider other alternatives. PS @ Wilhelm: With 3 children, we are talking about 5-8 years in the future. The salary will be in a different league, and there is no "compensation" for non-marital partnerships. That cannot be justified by any judge, because that is exactly the difference between a marriage and a non-marital partnership.

Regardless of the relationship stories and because this topic is often discussed in the forum. On the website of the house construction company contract vario Ahrensbök, there is a very nice table with reference values for house building costs, which are added on top for turnkey completion. I can confirm everything except for outdoor facilities and garden, which are too low in their table; I put in 15 thousand there. This is, of course, SH standard; some southerners will find a lot missing there, shutters and garages do not exist at Ahrensbök, but whoever wants to know what a proper simple house actually costs can use this table well. Karsten

About the size I find 120 sqm without a basement very tight for up to 5 people. Just go to Lehrte in the [Musterhauspark] and get a feel for the size of the rooms. Especially the technical rooms in the show houses. Now put a washing machine, dryer, dirty laundry, cleaning supplies cabinet, beverage crates, and provisions in there. The door won't close anymore. It is also not wrong to deal with room sizes and possibilities. And to align your tastes with each other. About the other topic, every woman has the option to secure herself contractually and should do so. Although the official divorce rate is 25%.

Your assertion:

there is no "compensation" for marriage-like partnerships.

My rebuttal with evidence and sources:
A mutual intention to bear responsibility for each other and to stand up for each other is presumed when partners

[*]have lived together for more than a year,
[*]live together with a common child,
[*]care for children or relatives in the household, or
[*]are authorized to dispose of the income or assets of the other.

...the beneficiary must disprove the existence of such a partnership.
(Wikipedia)

Because then the partner who mainly looks after the children can demand and receive financial compensation - similar to childcare maintenance after the end of a marriage or registered civil partnership.
(anwaltauskunft.de)

ps. Sorry for OT!

Back to Topic:
And exactly this can cause the bank to grant less credit to a "single person".

In case of individual financing, it is also checked whether the partner can support themselves and contribute a part of the child support.

And also off-topic: it’s not about marriage or not. It’s about the fact that the person who takes care of the children cannot have a career. In case of separation, you start again from zero (even if you were able to save a little). And that’s why securing the family, also in case of separation, is important. You’re not going to kick your girlfriend out with one, two, three children, are you? In this respect: a bit of heart, soul, and mind should be brought in before ** .., uh... nest building.

Together...