The Commission for Architecture and the Built Environment is set to put a cash value on good urban design and has commissioned a four month research study into the issue. cabe has picked the Bartlett School of Planning at University College, London to investigate six different examples of the design of public space and to evaluate their social and economic worth. 'We will attempt to put cash figures on areas where it is possible,' said Dr Matthew Carmona, who will lead the research team. These areas include the relationship between design quality and revenues generated by developers as well as where demands on the public purse are reduced through using good design. But Carmona warned the research would stop short of producing a formula which would relate the design to cash. 'The answers won't be as simple as that,' he said.