What area is it in?
If you are renting why bother with all the concrete areas?
By the time you sell how will they look
Do you have a deck on the place? I would think way more valuable than concrete area but that's just me
Solar hot water? Why spend the money
May I ask what the lock up cost is?
And...
Construction?
Square metres?
Floor design
Spec level
Your tiles will cost about 25 - 30 per metre for niceish stuff
Not sure about labour but perth is always a lot more expensive