“Both the National Trust and the valuation officers are anxious for the court to lay down some guidelines which can easily be applied to National Trust and similar properties throughout the country. I can understand that desire. Moreover, I recognise that the case law does not, in cases such as the present, give much help to the valuer on valuation principles to be applied when arriving at the amount of an overbid. However, I do not feel it appropriate in an obiter dictum to discuss the question in the abstract. I content myself with recording my total inability as at present advised to understand the theoretical justification for arriving at the amount of the overbid by starting at the gross receipts figure rather than a profit figure. The fact that one can adjust the percentage of that gross receipts figure in order to arrive at the hypothetical rent does not detract from the arbitrariness of starting with that gross figure. Moreover the amount of the percentage reduction seems to me equally arbitrary. The resulting valuations give a wholly misleading picture of scientific rigour. One suspects that what the valuer does is to use his evaluation of all the facts of the case and arrive at an intuitive figure and then build a theoretical structure to justify it. I cannot see any rational hypothetical tenant, who (unlike the Trust) is prepared to make an overbid, using that theoretical structure to arrive at the amount of his overbid in his negotiations with the hypothetical landlord. Nor can I see the hypothetical landlord having such calculations in mind.”
“Was there anything in the authorities or in the evidence to show that the modified profits basis was the appropriate basis for arriving at the rateable value in accordance with the statutory hypothesis? Certainly there is nothing in the authorities that lends support to the adoption of such a basis in a case such as the present. We were told that it is a basis used for profitable bingo halls, hotels and cinemas, in respect of which there is some evidence of a correlation in the real world between turnover and rents. There is no comparable evidence whatever in the case of loss-making heritage properties such as those in the present case.”