How did you resolve disagreements with your partner?

If both partners see and accept it this way, it is okay. I consider it (even though I am in the financially stronger position) outdated and not very partnership-oriented. A house is something shared by both and their future. Therefore, in my opinion, decisions should also be made in partnership. If the partner is only heard and then the opinion of the payer always prevails, it is not a discussion and certainly not a willingness to compromise. I would even call it disrespectful and demeaning towards the financially weaker partner. Fortunately, I have a functioning relationship on equal footing and do not have to bother outbidding the other with the money card...

Especially since a house is very rarely paid for without a loan. And whoever is currently the (main) payer does not necessarily have to remain so until the end of the loan term, and then suddenly, in retrospect, the payer was not allowed to make any decisions at all?!

In my eyes, building a house should always be a collaborative matter, where decisions must be made on an equal footing. Decision-making must of course take place independently of "top over bottom."

With some statements on this topic, I ask myself whether building a house is the right project here.

Especially since the work required for only one income (= only one payer) is often done by both. Childcare, household, etc. How to break that down now cannot be calculated, so you might as well do 50/50. Why one should rely on two people at all when all decisions are shifted to one person (“together” is not an option as an expression) is beyond me.

You are all right, in my opinion.
House is a partnership project and both parties should be equal in decision-making.

But if one party does not take on a part of the partnership, they cannot make demands for that part.

You always assume that the couple has been together for 50 years, the man earns 200k and the woman has 4 children and previously had a highly paid hospital chief job...

There are also other partnerships.
For example, one where the two have known each other for 2-3 years and are planning their future together at that moment, SHE has inherited 500k and HE is a DJ who sometimes has gigs on weekends. Now they want to move into a house and HE wants a man-cave, sauna, foosball table in the hallway, a "workroom" for his DJ stuff and the living room in dark wood look.

In your opinion, she should now sit down with him and find compromises... Yeah right... You are such good people with such a wonderful character.

I would love to see how good-natured and willing to compromise you are if your daughter of marriageable age comes up with such a plan...

But pretending to be understanding and willing to compromise here in the forum goes down well. You are all just much better people than I am.

With that said... enjoy paying it off.

In your opinion, she should now sit down with him and find compromises... Yeah, right... You are such good people with such a great character.

Anyone who says something liiiike that then really doesn't deserve anything else .... You are so great... yes, you are!
Character often shows itself between the lines