@benjojo Roofs of this kind are built to last about 100 years here. And it's only 400v three phase on those wires. Fairly easy to deal with.

@benjojo @sophie At least in NL this is probably part of the sales contract as dictated by the previous sales contract and relevant laws. Basically take it or leave it for the buyer, but it is one of the things the seller has responsibility yo mention before the sale and could be reason to cancel the initial letter of intent/mou

@bix @benjojo @sophie altho utlilties are seperate again afaik that is just by law arranged you need to allow them afaik.

@benjojo @sophie no, that's not in the books of the house here. It doesn't matter when being sold. It only matters when you want to redo the roof, it will cost more because the utility has to remove the cable before and reinstall it afterwards.
Many councils push to get power lines into the ground because it looks better and can be a bit more resilient (storm, trees...) and pay for that, but some can't/won't afford that.

@benjojo this used to be the standard in any detached housing environments. The wires are a bus that each house taps into. So the roof-poles are both used for taking your own electricity from the wire and also hold the wire that continues along a row of houses. Efficient.
If you need to change that much about the roof that you can't just leave the pole and work around it, you can opt to switch to buried wire, and the electricity company has to erect a streetside pole to supply the neighbours.