"A hereditament is anything which, by virtue of the definition of a hereditament in section 115(1) of the [General Rate Act 1967 ] would have been a hereditament for the purposes of that Act had this Act not been passed."
"13. Thus the Act provides, as it seems to me, firstly that every hereditament has to have its own rateable value and secondly that every rateable value appertains to a particular hereditament. The attribution to a hereditament, as its rateable value, of the rateable values shown in the list for two other hereditaments has no basis in the provisions of the Act, and it would indeed run contrary to them. Furthermore it must be borne in mind, as the facts in the present case demonstrate, that the rateable value of property assessed as a single hereditament will not necessarily be the same as the total of the rateable values of the same property assessed in parts as two or more hereditaments. Considerations of quantum on the one hand or the advantages to be derived from common occupation of the parts on the other may result in a value that is less or greater than the aggregate value of the parts; and differences in the mode or category of occupation could similarly affect matters. In my judgment, therefore, as a matter of construction, "the rateable value shown in the list for the hereditament" in paragraph (8A) refers to the rateable value ascertained in accordance with Schedule 6 paragraph 2(1) for the particular hereditament that is shown in the list, and it cannot be read as referring to rateable values so ascertained for other hereditaments .... 14. I would add that I can see no reason to adopt a different approach from this to the construction of paragraph (8A) on the basis of a consideration of the underlying purpose of the provision. Mr Mole's submission was that its purpose "was to give ratepayers some relief from the rigours of backdating where there was a mistake in the original list that was none of their fault"