Australians buying a home hoping for a future profit have been warned against investing in outer suburbs as younger people prioritise lifestyle. Property values last month soared at the fastest pace since October 1988 with price records set in Sydney, Melbourne, Brisbane, Adelaide, Canberra and Hobart. Buyers are piling into the market with Reserve Bank interest rates at a record low of 0.1 per cent and the big banks offering fixed-mortgage rates of less than 2 per cent. However Brett Warren, the Brisbane director of buyer's agent Metropole Property Strategists, said property was not guaranteed to keep appreciating, and buyers had a new set of investment rules they should follow.