I refer the hon. Member to the answer I gave him on 19 January 2009, Official Report, column 1081W
Data are currently being collected from local authorities and details of the level of non-domestic rates to be collected in England in 2009-10 will be published in due course.
The legislation requires that the transitional scheme be designed with the objective of being self financing. We will be consulting on the details of the 2010 scheme over the summer 2009.
Workplace parking spaces can add to the rental value of office or other business premises and are therefore taken into account in arriving at rateable value for non-domestic rates.