Financing a single-family house realistically?

1. For the price, this is - unless you live right at the [AdW] - a reasonable purchase price. Especially if you live near a major city.
2. If you like the house that much, then buy it.
3. Why so little equity with such a high income (in a structurally weak region)?
4. Is the question about feasibility really meant seriously? For the price of your financing, you can barely rent a property like this in most regions of Germany (except at the [AdW]), if at all. And if your lifestyle is already so high that you have to worry with a foreseeable €7,000 net / currently €5,800, then maybe you should rather not do it. To have almost €40,000 available every year for your standard of living after installments/additional costs, and then to worry about financing, that is something you really have to manage.

Accusing people because they think about half a million in advance of a decision, that itself is something you have to manage first. It is human and rather commendable to want to ensure that nothing is overlooked and to ask for other opinions. Lack of equity can also be justified by the fact that the current household net income has not been available at this level for long.

Accusing people because they think about half a million before making a decision, that’s something you have to manage first.

No accusation. Actually a sincere question. Anyone who earns this income and thus belongs to the top 10% in Germany and has also brought a child into the world should actually have a certain level of education and life experience. And also have experience whether they can manage their shopping, car(s), clothes, and leisure activities every month with €3,000. And then you can actually ask whether the question is really meant seriously. Maybe the answer will be that there are still student loans of over €1,000 monthly and the Porsche + second car also have to be paid off with €1,500 monthly. Or that one really has to tighten the belt with €3,000 monthly. After all, it’s the property that both imagine as "upscale, lots of living space, fireplaces, and balconies, etc." Sounds like an upscale lifestyle too. Although personally, with a nearly 30-year-old property that is considered in need of renovation, I see the perfect sales time. Not really good energetically anymore. Bathrooms, floors, etc. are also no longer up to date. Heating often also worn out. The roof can start leaking at any time. Windows usually also from the original year of construction. If you want to continue living in an upscale manner, six-figure amounts go out quite quickly. With 200 sqm of living space and a renovation (not refurbishment) of €500/sqm, that’s already €100,000. That makes the house nice and livable but does not bring it up to a new standard. You don’t have to either; you just have to keep that in mind before deciding purely emotionally.

The TE have formed their own opinion based on their life experience and education. However, they then created a thread here, explained their situation and also the property (!), and asked for further assessments. Including opinions other than one's own, and asking for other assessments that might broaden one's own horizon, I certainly consider to be an indication of education and a certain intellect. I see absolutely nothing wrong with that. It does not show a lack of judgment, but rather takes advantage of opportunities.

If you want to live more upscale, six-figure amounts come into play quite quickly.

Either it gets expensive, or you move in as the house is. According to the thread starter, at most you would have to renovate the bathrooms.
That's the crux with 30-year-old houses: For some, they're shoddy, for others, like new.

Here in the forum, I often get the impression that everything over 15 years old actually needs to be completely renovated and brought up to new-build standards. Meanwhile, most people live in apartments and houses that are older, and many live there very well. I agree that one should be aware of the average lifespan of a roof, windows, etc., and what the square meter figure practically means for renovation, cleaning, etc. But beyond that, many things simply fall under "would like to have" and not "need." Or not even that – some people actually appreciate the old building charm and like what others perceive as a lack of comfort. For example, underfloor heating or electric shutters or smart home in general are not to everyone’s taste.