It is well appreciated that people are willing to pay more for properties that are closer to the CBD, have a greater range of services close by (e.g. transport, retail) and offer an attractive lifestyle (e.g. a cosmopolitan community, river views). Given the large variations which exist in these features across suburbs (as well as due to variations in property sizes) there is thus a great disparity in median house prices across the Brisbane metro area (see the map below based on the May 2016 CoreLogic data published in the August issue of Your Investment Property magazine). So New Farm and Teneriffe have median house prices around $1.5 million, while median house prices in many suburbs in Ipswich and Logan are in the $300-400k range. With recent improvements in services and amenities, particularly in Springfield (e.g. shopping centre expansion, rail line, Robelle Domain), and the large projected population growth in the Ipswich region, relatively low property prices could make the western corridor and Ipswich good places for investors to consider.
Source: CoreLogic May 2016 median house price data published in the August issue of Your Investment Property magazine. N.B. data unavailable for some suburbs (coloured white on map).
I have previously discussed the long-term prospects for Ipswich:
N.B. The usual disclaimer applies, that this does not constitute investment advice.