Construction water costs over the entire construction period

PS: and €1000 for construction electricity is rather underestimated (I believe we were altogether over €2k, but we also had to run the screed heating program with electricity for over a month due to the lack of a gas connection). But even without this measure, €1000 is, in my opinion, rather tight.

What sums have you all paid, that's madness. Construction electricity cost us 90€ throughout the entire construction phase. Water was less than 20€. These are only the consumption charges; the provision for both together cost around 1000€.

Of course including setup! :P

Try running a screed functional heating and readiness heating program with a 21KW electric boiler on electricity... then you'll know how I come up with such amounts :P
But 90 € is not doable even without the boiler (at least it wasn't for us) with the approximately 4 months of usage/construction time.