Is financing with low equity sensible?

So Payday is definitely right. With that net income, you can save a lot of equity in two years. Don't make a rash decision. However, with that income, you could already afford the loan now, just with worse conditions. Provided the household budget is in place and the desire to have children is planned.

We have already looked at about 7 or 8 houses. The first 3 were rubbish, but they were also around 200,000. After that, we realized that we need to invest around 300,000. With patience, there might be something to find, but then also a bit outside or with investments needed in the coming years. We will probably take a look now. Of course, it might not fit anyway, but from investments I know that you look at what fits in the budget. I wouldn't test drive an S-Class if I only have money for a Golf. Even if the Golf is great, you will always measure it against the S-Class later.

Regarding saving: yes, despite a lower salary in the past, we have lived well (vacations, home cinema for 10,000€). However, we want to and can significantly cut back on that.

Waiting is certainly also an option, but the housing market here is quite tight, so prices are currently rising about 5% per year. Since we also pay a decent rent, the question is whether it will pay off in the end. I would like to be done with the repayment by around my early 60s. We will probably start financing then.

Home theater for 10,000 ???? Wow, and I was feeling guilty about buying a used iPhone

The television costs more than 2 of our cars (so we would have 2)

380000 plus real estate transfer tax plus notary?
That's certainly a lot, but paying off as much as possible before the child arrives could work (imho).

Still childfree, but my wife would go back to work at least 80% after one year (teacher).

I would count on less. Unless you're already planning on a full-day daycare spot (which you are sure to get). Here with us, the spots are assigned. If it’s only a spot until 2 p.m., it can get tight with school hours depending on the school. Besides, you might already have to balance the meetings, school trips, etc. with "your" hours, which are "not divisible."

At 80%, the part-time exemption no longer applies.

Home theater for 10,000 ???? Wow, and I was just feeling guilty about buying a used iPhone

I hope it’s because of the manufacturer and not because of the cost. Otherwise, you probably shouldn’t build a house

@TE: With that income, it’s certainly doable without problems. But the equity would be too low for me as well. You can save quickly and a lot.