@JimmyT said:
I also believe that the council and police won’t touch cars abandoned on common property as it is technically private property.
We had a situation where a vehicle was parked on common property. I live quite close to the local police station, so I went over and asked them if they could give me details of the registered owner. Turned out to be one of their regular visitors, who had been detained in a cell and was going to be there for an “undertemined period of time”. The police suggested we arrange for the car to be towed and parked in the street (somewhere legal, of course). The officer said “might teach the guy a lesson about where he parks his car”.