In addition, stock condition assessments are relevant to the investment requirements for regeneration, including both refurbishment and the possibility of demolition with or without replacement. Judgement is needed in translating needs assessments into policies in the light of available resources and the range of options available in different tenures and neighbouring areas. Most local authorities now periodically commission housing needs surveys. This development has been strongly encouraged by the planning system and the advice given by Government Regional Offices and Planning Inspectors. Surveys cost on average 25,000 and 'best practice' may require more, although there is a competitive market of consultants offering to carry out such surveys.
Consultants tend to offer standard packages with limited tailoring to local requirements.
Authorities would welcome and benefit from more guidance on a proactive approach to commissioning surveys. Survey reports contain only limited cross-validation of sample responses against other sources, for example in relation to incomes or demographic structure, and this is an area for improvement. National surveys and previous needs surveys can be used more for benchmarking. Surveys can bring together considerations of suitability, affordability, and preferences, although some past surveys have relied too heavily on one or two of these. The balance between subjective and objective data varies, as do the categories of need identified, and more guidance could be given on best practice here.