Maybe in NSW there is some prohibition on letting other use your parking space. Seems odd to me. As it happens I leased a parking space from a neighbour for a year some time ago to accommodate a car I was converting to electric drive. At the moment I have a car in another space that a neighbour is not using and they are happy to let me use it. Lots of people have amicable arrangements with neighbours where one has a spare space and the other has a trailer or extra car to accommodate. I can’t see why the EC would have a problem with that.