Building ground suddenly a biotope

A lawsuit for failure to act of course does not earn popularity points

above all, it does not speed up anything. As soon as a procedure is pending, the process will be on hold until the procedure is completed. Find yourself a specialist lawyer.

I would personally speak to the building authority with photos of the property. They are certainly not aware that this property is a "victim of biotope and slope," so it is in a dilemma. There is surely something that can be done regarding exceeding the limits. However, it should also be a real house and not an oversized one, then the chances are not so good.

The problem is
1 it is next to the parents' house

Oh! A risk not to be underestimated.

The house is normal size, even one of the smaller ones in the area, about 9.5 by 10.5. We will probably inquire at the district office during the course of next week because unfortunately they have not had the case either. (That might be the reason for the long time). Due to our legal protection insurance (unfortunately the property is not covered), we received a telephone consultation, but even that was a difficult case for the lawyer and now we have to look for a lawyer in our area.

I would also suggest going to the building authority again or asking for a site inspection and then politely and factually (!) asking how a house is supposed to be placed there to comply with all the requirements. Maybe it simply hasn't been noticed yet that it is hardly possible.

The size of the house would be 9.5 m by 10.5 m. At the beginning, we asked for an on-site inspection, but the response was that they do not have time for such things. We also briefly asked where we should place the house, and the answer was outside the [biotop], and excavations are to be avoided.

the response was that being outside the biotope and excavations are to be avoided.

"To be avoided" means that it is not forbidden. But you can't reconstruct the exact wording anyway. I would continue trying to work out a solution during the regular service hours. Normally, the people there are helpful.

But as I read it here: As long as any normal (small) house can be built within the building area, all other special requests will be difficult. Nature conservation is given very high priority.

Please under no circumstances something like this:

So this may be bad advice, but maybe you’ll be cheaper if you build the thing as planned and then just pay a fine. (Warning! Risk of outrage waves )

Even the illegal felling of trees can lead to an immediate construction stop for months. The same will happen if you damage the biotope. Above all, there are technical solutions to protect nature for a slim 50,000: sheet piles.

I’ll repeat kaho’s question, even though you already said that you want to build there:

Would you give back the plot if you had to build differently? What do you want to achieve? A price reduction or cost reimbursement? I think you won’t get far without a specialist lawyer.

If you can’t reach an agreement with the city alone, then it will come down to a lawyer. Whether he can achieve anything I dare to doubt; in any case, it will be very, very expensive for everyone. So think carefully about which option you want to pursue.