“47 It is true that the 1988 GDO revoked the 1977 GDO and made no savings in respect of rights already acquired. This begs the question, therefore, whether any PD rights acquired under the 1977 GDO prior to the revocation can still be relied upon afterwards. I have not been able to find any case law specifically on the point at this moment in time, but there is case law which discusses what happens when an Article 4 direction is made under the 1977 GPDO, thereby removing permitted development rights previously granted. In an appeal case relating to an enforcement notice issued by West Oxfordshire District Council [1987] JPL, 663, ... the Inspector took the view that if it had been Parliament's intention that Article 4 directions could have the effect of making a GDO permission cease to apply after operations had been commenced in reliance on it, but before completion, it is likely that explicit provision would have been made to that effect. Accordingly where the development concerned consists of a single operation, and it has been commenced but not completed, it can be completed notwithstanding an Article 4 direction removing permitted development rights. 48 Whilst not exactly the same context here, there appears to be no reason why the same principle would not apply when an Order itself is revoked. If the revocation of permitted development rights could prevent the completion of operations already commenced, it would be a de facto revocation of planning permission and it seems unlikely that this is what Parliament would have intended, particularly without compensation being payable. Therefore, in my view, provided the Company could demonstrate that its tipping operations are to be viewed as a continuous operation, the revocation of the 1977 GDO would not preclude the Company from relying on those rights today. I deal with the issue of continuity in the context of earlier GDOs at paragraphs 61 to 68 below, but the same considerations would apply here to the 1977 GDO.”
“10 Turning to the question of rights under Part XIX, 3. Whilst it is not expressly stated by the Agency in their statement of case, the assertions they make at paragraphs 42 and 43 to the effect that "it is difficult to see that tipping and the proposed tipping as part of a single operation" and that the deposits "were not a single operation but a change of use each time a deposit is made that either extends the area of the deposit or its height above the surrounding ground level" clearly imply that the Agency is treating every deposit of waste as a change of use requiring separate authorisation in the same way that every shovelful of mineral extraction is a new engineering operation. Whilst visibly acknowledging the fact that tipping of waste is considered to be a change of use rather than an engineering or other operation (a peculiarity noted in the Roberts case - see Appendix 12 of the Appellant's Advice), the Agency, however, in its application fundamentally misunderstands the distinction between the two. As a change of use, every deposit is clearly not development requiring separate authorisation; only a material change of use would require the same. 11 In this regard the Agency places reliance on the definition of development in the 1947 Town and County Planning Act, as made clear at paragraph 42 in the reference back to paragraphs 26 and 27. However, in reaching the view that "it is plain from the definition of development earlier" that any deposits of waste were not a single operation, the Agency is misconstruing, and therefore misapplying, the proviso within Section 12(3) of the 1947 Act, namely that a deposit on a site already used for the purpose will not require planning permission "if the height of the deposit does not exceed the level of the land adjoining such site and the superficial area of the deposit is not thereby extended". The proviso, therefore, sets out the parameters of when a deposit would or would not be a further material change of use requiring a new authorisation. 12 Having rightly identified the existence of this proviso, the only way the Agency can logically still reach its conclusion is by interpreting the reference in the 1947 Act proviso to "the level of the land adjoining such site" as meaning the height of the deposit immediately prior to further waste being deposited on it and the reference to extending "the superficial area of the deposit" as meaning any lateral extension of individual piles of waste within a site. On such an interpretation then every time a new deposit is added to an existing deposit there would be a material change of use, which is what the Agency appears to be suggesting. 13 This is a fundamental misunderstanding, however, of the limitations imposed by Section l2(3)(b) of the 1947 Act (limitations which are replicated in the current 1990 Act albeit in a different formulation). Firstly in terms of the issue of height, the wording of the proviso is clearly a reference to the wider site; it does not refer to the land adjoining such deposit but to the land adjoining the site on which such a deposit is made. Secondly, the superficial area of the pre-existing deposit must not be extended (NB activities leading to the deposit of material and areas used therefor would also be included). The scheme the Appellant has been working to relates to the GDO area and so all deposits made within the GDO area, provided they do not exceed the height of the excavation, will not amount to a separate change of use requiring planning permission.”
‘In the case of an application for a permit that will authorise the carrying out of a specified waste management activity at an installation… the permit shall not be granted unless- (b) in the case of an installation where the use of the application site for the carrying out of that activity requires planning permission granted under the Town and Country Planning Act, such planning permission is in force in relation to that use of the land.’
‘The carrying out of building, engineering, mining or other operations in, on, over or under land, or the making of any material change in the use of any buildings or other land’
‘For the avoidance of doubt, it is hereby declared that for the purposes of this section – (b) the deposit of refuse or waste material on land involves a material change in its use, notwithstanding that the land is comprised in a site already used for that purpose, if – (i) the superficial area of the deposit is extended, or (ii) the height of the deposit is extended and exceeds the level of the land adjoining the site’
“the deposit of waste material resulting from an industrial process on any land comprised in a site which was used for that purpose on1st July 1948 whether or not the superficial area or the height of the deposit is extended as a result. D.1 Development not permitted Development is not permitted by Class D if— (a) the waste material is or includes material resulting from the winning and working of minerals, or (b) the use on1st July 1948 was for the deposit of material resulting from the winning and working of minerals.”
"35 It may perhaps help at this point to attempt some broad summary of the authorities governing the proper approach to a reasons challenge in the planning context. Clearly what follows cannot be regarded as definitive or exhaustive nor, I fear, will it avoid all need for future citation of authority. It should, however, serve to focus the reader's attention on the main considerations to have in mind when contemplating a reasons challenge and if generally its tendency is to discourage such challenges I for one would count that a benefit. 36. The reasons for a decision must be intelligible and they must be adequate. They must enable the reader to understand why the matter was decided as it was and what conclusions were reached on the "principal important controversial issues", disclosing how any issue of law or fact was resolved. Reasons can be briefly stated, the degree of particularity required depending entirely on the nature of the issues falling for the decision. The reasoning must not give rise to a substantial doubt as to whether the decision-maker erred in law, for example by misunderstanding some relevant policy or some other important matter or by failing to reach a rational decision on relevant grounds. But such an adverse inference will not readily be drawn. The reasons indeed refer only to the main issues in the dispute not to every material consideration. They should enable disappointed developers to assess their prospects of obtaining some alternative development permission, or, as the case may be, their unsuccessful opponents to understand how the policy or approach underlying the grant of permission may impact upon future such applications. Decision letters must be read in a straightforward manner, recognising that they are addressed to parties well aware of the issues involved and the arguments advanced. A reasons challenge will only succeed if the party aggrieved can satisfy the court that he has genuinely been substantially prejudiced by the failure to provide an adequately reasoned decision"