Are you sure this is a good idea?
In Canada, condo fees double (or triple) every 10 years.
Here is a breakdown of all the feel I googled on a 400k condo. Interest rates won't stay high forever.
Strata $2650 per quarter including $1029 into reserve fund.
Council $1592 per annum
Water $1160 per annum
If Perth is anything like a major Canadian city, living downtown would negate any need for a car. I assume public transport is very good over there,