"The Rose and Castle is a typical public house. On the ground floor is a saloon bar with a food servery, kitchen and customer toilets. The bar has a traditional bar counter where alcoholic and non-alcoholic drinks are served and an adjoining food servery selling typical pub food. There are several entrances to the bar and servery. There are the usual bar stools and tables and two gaming machines. On the first floor the floor space has been divided to provide chilled cellarage, wine and spirits store, office, plant room, staff toilets and storage. We find that the principal characteristic of the use is the sale of alcoholic and non-alcoholic drinks and food for consumption on the premises. The City Fayre/City Duck has slightly different characteristics. It has a composite use. On the ground floor part is a typical public house with bar and tables and three gaming machines and part is a licensed self-service cafe/bar. The kitchen and customer toilets are common to both uses. The first floor, like the Rose and Castle, has been divided into similar ancillary accommodation. As with the Rose and Castle the principal characteristic of this use is the sale of alcoholic and non-alcoholic drinks and food for consumption on the premises."
"Under the law of rating it is established that every hereditament must be valued (on the basis of an assumed tenancy from year to year) taking account of its existing use and physical state. The requisite assumptions as to use and physical state comprise two limbs of what is known as the rebus sic stantibus rule."
"The rateable value of a non-domestic hereditament [ ... ] shall be taken to be an amount equal to the rent at which it is estimated the hereditament might reasonably be expected to let from year to year if the tenant undertook to pay all usual tenant's rates and taxes and to bear the cost of the repairs and insurance and the other expenses (if any) necessary to maintain the hereditament in a state to command that rent."
"It is a principle in rating assessment that the hereditament should be valued as it stands and as used and occupied when the assessment is made. There is difficulty in the doctrine of a hypothetical tenant, but if to this is added the doctrine of a hypothetical hereditament, the confusion would become hopeless."
"In weighing up the evidence bearing upon value , it is the duty of the valuer to take into consideration every intrinsic quality and every intrinsic circumstance which tends to push the rental value either up or down, just because it is relevant to the valuation and ought therefore to be cast into the scales of the balance before he looks to see the resultant figure on the dial at which the pointer finally rests."
"On the one hand there is the requirement that the value of the occupation to the existing occupier is to be taken as the measure of his liability for a rate; on the other hand is the need to take into account all the characteristics of the hereditament."
"I thus accept the submission of counsel for the ratepayers and counsel for the valuation officer's alternative submission so far as it goes - that in valuing for rating purposes it is necessary to take the hereditament as it stands rebus sic stantibus; that the value as thus restricted must relate to the hereditament in its existing physical state; and that the use of the hereditament must be taken to be within the same mode or category as the existing use. So much, I think, is established by authority, as I have interpreted it; and certainly now confirmed by statute law ins 20 of the General Rate Act 1967 . Finally, all alternative uses to which the hereditament in its existing state could be put in the real world, and which would be in the minds of competing bidders in the market, are to be taken as being within the same mode or category, where the existence of such competition can be established by evidence."
"The principle that the property must be valued as it exists at the relevant date is an old one, certainly older than the Parochial Assessments Act, 1836. It has been spelt out in modern terminology in Poplar Metropolitan Borough Assessment Committee v Roberts[1922] 2 AC 93 , 120, and in Robinson Bros (Brewers) Ltd v Houghton and Chester-le-Street Assessment Committee[1937] 2 KB 469 in passages which have been cited. The principle was mainly devised to meet, and it does deal with, an obvious type of case where the character or condition of the property either has undergone a change or is about to do so: thus, a house in course of construction cannot be rated: nor can a building be rated by reference to changes which might be made in it either as to its structure or its use. But it would surely be unreasonable to suppose that the hypothetical tenant is so inescapably imprisoned in the present that no anticipation is permitted of what is to come. Whether the test is what would influence his judgment, or what intrinsic qualities the hereditament possesses, any occupier in real life has to ascertain and to consider whatever may make his tenancy more or less advantageous over the period for which he takes it."
"The broad purpose of section 20 was to secure that a hereditament which, for one reason or another, fell to be valued at a time after the coming into force of a valuation list should be valued on the basis of the general level of values prevailing when the list was made up. It is not apparent that there was any good reason for requiring the disregard of any of the circumstances which would ordinarily be taken into account under the rebus sic stantibus rule. If any of such circumstances were to be disregarded, the result would necessarily be to some extent artificial. The expression rebus sic stantibus raises the concept of a certain ascertainable state of affairs."
"The conclusions that we have come to can be stated shortly. The rebus sic stantibus rule identifies for the purpose of valuation the hereditament, the physical changes which may be made to it, and the mode or category of occupation. The rule rests on the concept that what has to be determined in rating is the value to the occupier of his occupation of the hereditament, measured by the rent on an assumed yearly tenancy. In carrying out a valuation under the rating hypothesis the following assumptions are to be made about the hereditament: (a) That the hereditament was in the same physical state as on the material day. Alterations which the hypothetical tenant might make to the hereditament may be taken into account if, taken overall, they are minor. All other prospective alterations to the hereditament are to be ignored. (b) That the hereditament could only be occupied for a purpose within the same mode or category of purpose as that for which it was being occupied on the material day. Any prospective change of use outside that mode or category is to be ignored. In determining to what mode or category a particular use belongs it is the principal characteristics of the use and the methods of valuation commonly applied by rating surveyors to which regard must be had; and shops, offices and factories serve as examples. Some uses may not fall within any such broad category, however, and are to be regarded as sui generis. Any evidence relating to the rents or assessments of other hereditaments may be taken into account provided it is relevant to the valuation. There is no rule that evidence relating to another hereditament is irrelevant if that other hereditament is in a different mode or category of occupation."
"It is important that this statutory world of make-believe should be kept as near as possible to reality. No assumption of any kind should be made unless provided for by statute or by decided cases."