I've met with the Engineer of the sewage (as per a previous post). We had a very short chat. He told me that:

  1. The main pipe is in the middle of the street, 3 meters deep.
  2. He needs the exact point where the pipe connection needs to be put out.
  3. The works will take about a month once the file is complete.

I went to talk with my architect and they told me they will give us the information once the cellar is built. This means towards the end of January (according to the current planning).

HTH,