@meaw206 said:
Before I thought my space is car space I complained with Strata manager but he said he cannot do anything because my space is only storage.
What your strata manager means is “I can’t be bothered and the committee hasn’t told me to do this, so you’re on your own…”
If your neighbour is parking over the line he is breaching by-laws that don’t allow people to park their cars blocking common property.
Your problem is the potential tit-for-tat complaints. As I said before, try to do a storage for parking swap.
Meanwhile you could apply to NCAT to get the Owners Corp to allow you to do whatever is necessary (See Lady P’s post) to make that an official small car parking spot.
By the way, the solicitor who didn’t check the sales documents properly owes you a favour. Maybe you could get them to investigate your options and send a couple of strongly worded letters.