Here's my opinion on uni parking at unsw.
You should only park at streets close to uni (<5min walk) if you drive an old car and you dont really mind risking the chances of getting your car scrapped by other cars. Reason being, is because you just won't believe how much idiots that park so close and squeeze themselves into a car space that's really not suitable for their car size. The closest gap i've seen with them parking were two cars in contact and, worse yet, i've seen cars that were sandwiched by two cars with less than 10cm gap front and back. Parkers near uni are just insane and inconsiderate for others.
If you're driving a relatively new car, i'll advise you take the extra 10min walk from/to uni for your car's sake.
As for myself, i'm borrowing a friend's car space under his apartment. It's a healthy 15min walk. I've seen people trying to hunt for parking spaces close to uni for an awfully long time where they could have settled for an easy parking that's a 15min walk. Often if you're not an earlybird, you will need to spend maybe >15min trying to find car park that are close to uni.