Statistics can be confusing and change rapidly but these web links lead to official sources of information which give some indication of the scale and nature of housing need in Preston and Lancashire.
Lancashire Homeless households in priority need, households living in temporary accommodation, plus rough sleepers, 2014/15: from LCC website
Housing benefit and "bedroom tax issues"..
Census maps and statisics about housing in Lancashire online atlas
Average House Prices in Lancashire from instant atlas
Atlas of the Indices of Deprivation 2010 for England