Yes Bald Hills is an older suburb in parts,I have owned a house there for over 30 years and it does have a lovely feel to it but there are also new areas ...... but I would not buy on the Bracken Ridge side of Bald Hills due to it being built on old flood areas...... .............. try Bridgemans Downs, Aspley along and behind Mandrell Terrace, Brighton and Taigum, Petrie is an older suburb as well unless you by in the built up area or around Lake Kuwongbah and North Pine Dam..... you could also try Cashmere and Youngs Crossing ............ if you want acreage ........ or if you want an outstanding house you could always buy the land and build
http://www.realestate.com.au/property-acreage+semi+rural-qld-kurwongbah-108671516
or this one if you do not want land with it
http://www.realestate.com.au/property-house-qld-bridgeman+downs-111855823
http://www.realestate.com.au/property-house-qld-bridgeman+downs-111761319
These last two are a easy drive to St Pauls