SQM has a good website to look at rental vacancy rates:
Brisbane City (4000 postcode) - 1.7%
South Brisbane area (4101) - 1.6%
Toowong (4066) - 1.4%
St Lucia (4067) - 1.5%
Indooroopilly (4068) - 1.9%
Sherwood area (4075) - 2.6%
Hamilton (4007) - 4.4%
Noosa (4567) - 2.2%
Mooloolaba (4557) - 1.3%
See also story in Courier Mail
"INNER Brisbane rents are increasing at more than 10 per cent a year, with a downturn in new apartments expected to keep vacancies tight.
DTZ Research has shown the biggest growth has been in one-bedroom units in the inner south and inner west suburbs of South Brisbane, West End and Indooroopilly, where rents have risen by up to 20 per cent.
The median rent of a one-bedroom unit in the inner south is now $420 a week, only $10 less than the CBD median price. DTZ director of project marketing Paul Barratt said the strongest growth in the next two years would be in near-city units and middle-ring suburbs with good transport."