Buying Guide - Former Agricultural Farm

I fear something similar to what @andimann describes. That it was tolerated, but when the owner changes, people take a closer look again)

Me too.
If you look at the area on Maps, you wonder whether it is a prank by the Schildbürger or a dog run. Strange!
Okay, it is Natura 2000.., with a residential house.
By the way, the agent works in credit services. I assume that the brokerage is a favor between acquaintances.
Anyway: one should consider that a BU is not interested, even though the area has a lot of potential.

Only a local who knows the district administrator and the nature conservation authority well has a chance.

One more word on the topic of intervention in nature: I know it this way, that the environmental office has a fixed point value for each intervention with which they assess the areas. For example, a field has a value of 5, a lawn 10, a tree 20 (fictional values). So if you now want to fell a tree to lay a lawn, the 20 becomes a 10 x the area (including crown) of the tree. The value would therefore be negative. Now you can plant 5 new trees elsewhere and the matter can balance out again. It also depends on what you are planning. If you want to fell all the trees at once, I would throw you out of the office as the head of the office. But if it is only about a bush and you plant 3 new ones in the back area for it, I see fewer problems there. Maintenance measures are, as far as I know, not a major intervention as long as the biotope type remains the same. So for mowing the lawn or cutting the hedge, you probably don’t have to ask all the time. What can happen, however, is that you are not allowed to plant everything as you like.

Thank you very much for the additional tips! I have now booked the earliest available appointment at the building authority. They did not want to respond by email. On 06.02. I will therefore know more about whether and how we are allowed to use the house.

Only a local who knows the district administrator and the nature conservation authority well has a chance.

Those times have long gone. The influence of a district administrator is very limited, as is that of the municipal council, and the environmental authorities do nothing without expert reports.

The agent said on the phone that he would recommend not to make a big deal out of it at the authorities at first, which I plan to do, and then in practice it would work out with my own ideas. But I rather believe that he just wants to somehow get it sold...

Of course the agent says that because he just wants to sell. I would be very cautious there. Why the house is getting cluttered after the parents' death, apparently an untrustworthy exposé. Somehow all my alarm bells are going off there.