Connection costs for telecom, cable, electricity

Hello everyone,
we are about to purchase a plot of land in a new development area that is currently being developed.
Does anyone happen to know how the costs for Telekom, cable TV, and electricity are allocated, meaning who pays for the development work in the public area? Are the costs distributed among all plots or does each plot only pay for the connection from the property boundary to the house? Thank you very much for your answers.

Regards

From whom are you buying the property, private individual or municipality?

Private. However, the owner has concluded a contract with the municipality for the development of sewer/water/road construction. According to the municipality, electricity/gas/telephone etc. are to be installed by the respective providers.

From private. However, the owner has entered into a contract with the municipality regarding the development of sewer/water/road construction. According to the municipality, electricity/gas/telephone, etc. are to be laid by the respective providers.

Was the contract concluded without costs? Otherwise, call the municipality to inquire.

Normally, the development costs are allocated to the square meter prices. Check what is stated in the purchase contract and call the municipality.

House connections are then your responsibility. There are pinned threads about the ancillary building costs.

Was at the municipality yesterday. The costs for sewer/water/street are known (they are in the contract after all). No one at the municipality could tell me what the other providers charge. So I guess I'll best call Telekom etc. I'm curious if they are capable of giving me any information.