Four connections. Electricity, water, gas, telephone, through four empty conduits or individual entries. All next to each other in the utility room. Already prepared in the floor slab.
multi-branch introduction, costs included in the total price what is expensive? and if there were cheap ones, would you care if they protect against water? I wouldn’t ever googled it? you can find many offers around ~800€
I had an empty conduit installed in case another cable connection should follow
It is indeed advisable to plan an additional empty conduit at the moment, in case you want to participate in the FTTH/FTTB program or at least do not definitively rule it out. The fiber optic expansion for high-speed internet will come sooner or later.