Edited sentence: A lower socioeconomic group who live in dense housing estates of relatively cheap housing.A more affluent group who live in 'acreage' properties where they can enjoy a semi-rural lifestyle within easy reach of Brisbane.A relatively affluent group who can live in a few select suburbs where they can enjoy middle-class properties at a lower property price than comparable properties nearer to Brisbane.The result has been the polarization of the population into three main groups: