This small project was commissioned by DCLG (then ODPM) to assist their thinking in terms of responses to the recommendations of the Barker Review of Housing Supply (2004) which suggested that planners take more notice of market signals when developing their housing policies. It took the form of answering specific questions raised by DCLG. Methods included literature reviews and interviews with key stakeholders. The project culminated in two short internal reports to DCLG.