Wastewater connection in property subdivision

Hello,

my husband and I are currently in the process of purchasing a plot of land. It is a plot that is already developed. We are having an area separated from it. Now we want to check the costs for the house connections.
The wastewater association has informed us that the connection will be significantly more expensive because it is not a first but a second connection. The reason is that the entire plot has already been developed. The exact costs can only be communicated to us once we submit the applications.

Has anyone had a similar case?
Is it correct that this is a second connection?
On the one hand, it sounds absurd to me, but on the other hand, somehow understandable.

Thank you very much in advance

How would the routing of the sewage pipe for the new building be?

How would the sewer line be routed for the new property?

The existing sewer line in the public road must be extended to connect the new parcel separately. There will be no connection to the existing property. I hope this answers the question.

We are still quite new to this

Yes, this answers the question and explains the increased price due to the additional effort. The nomenclature “Zweitanschluss” is not familiar to me.

Yes, that answers the question and explains the higher price due to the additional effort. The term "Zweitanschluss" is not familiar to me.

Alright, thank you very much for the answer