§ Mr. Newensasked the Secretary of State for the Environment if he will give details of the number of postmills, smockmills, towermills and other type of windmill which are known to be in existence at the present time; and how many are listed buildings in each case; and if he will give the equivalent figures for 1971 and 1961.
§ Mr. MacfarlaneThis information is not readily available in the Department and would be disproportionately costly to provide. There are nearly 280,000 listed buildings, and they are not recorded by categories.