How do I find electrical wires in the garden?

Hello dear ones! I hope I am in the right area..

We want to do the garden next year, so completely dig up the property, mill out tree roots, level the ground, bury the fence, pave AND insulate the basement from the outside... I have all the information about water pipes but what I don't know and nobody from the city could help me with, WHERE are the electronic lines located? Do gas lines run through our garden? Main power underground cables? Can you tell me who could tell me something like that? I was also at the town hall last week and looked into the building file, there was a lot inside but nothing about lines, cables, etc... :( I look forward to answers :o Best regards! Burmilla

Maybe ask the water authority or the energy supplier!?

As a rule, only your house connections are located under your property. Public main lines are located under the sidewalks and streets.