Total cost of land - fees - other costs?

Hello!

My wife and I bought a 593 sqm plot from the municipality.
The purchase price is €199.50 plus €45.45 development fee per sqm, so a total of €145,255.35.

We have already paid notary fees of €1,538.02 and property transfer tax (3.5%) of €4,170.
Now we received a letter from the Landesjustizkasse, requesting €1,040.
What exactly are these Landesjustizkasse costs for? Are there any other costs we should expect?

Thank you in advance
Marvin

What does it say? We also received some invoices from the [Amtsgericht] regarding registration, etc. All related to the [Grundbuch].

I'll just upload it here...

Almost forgot, we also paid an additional 471€ for mortgage 1 and 536.69€ for mortgage 2 with the notary.

Well, there it is in black and white what the costs are. I don't quite understand the question ...

Well, these are the land registry fees from the land registry office. If you finance later during construction, there will be another invoice from the office.

And take your personal data out...