“At the start of the Hearing, the appellant indicated that he only intended to pursue two of the potential sixteen permutations that had been identified, namely: (1) two flats in the main building as extended, with the outbuilding not in residential use and (2) main building as extended as a single dwellinghouse, with the outbuilding ancillary to that dwelling. I have therefore focused my consideration of this ground of appeal on the two permutations now favoured by the appellant but will also consider below all remaining permutations including the full deemed planning application that arises under Section 177(5) of the 1990 Act.”
“Furthermore, the layout of that amenity space is not suitable in terms of shape, aspect and siting as required by Figure SC5.2. As described above, the space is effectively in two corridors that are perpendicular to each other to form an ‘L’ shape. The ‘corridor’ of amenity space that runs east-west is sandwiched between the single-storey extension and the outbuilding. The ‘corridor’ of amenity space that runs north-south is sandwiched between the flank wall of the main dwelling and the brick east boundary wall. To a greater or lesser degree, both spaces are oppressive to be in. Part of the space that runs north-south is overshadowed by the large tree in the neighbouring property, such that it would receive little or no sunlight. The other part is directly overlooked. Moreover, there is not a single square or rectangular area that could form a usable garden space, especially for children to play in. The latter is an important consideration in relation to a dwelling potentially having four bedrooms and occupied by up to six people.”
“Permutation 3: main building as extended as a single dwellinghouse, with no outbuilding. “68. This is not a permutation favoured or advanced by the appellant. However, the single-storey rear extension is part of the matters stated in the notice and, in the light of the judgment of the High Court, is nonetheless one that I must consider. 69. In this scenario, the dwelling as extended would have a floor area of some 107m². With the outbuilding removed, the total garden area would be some 104m². Some of that garden space would suffer from the same defects highlighted with the previous permutations in terms of being overshadowed, overlooked and not particularly usable. However, with the outbuilding removed, a broadly rectangular external space measuring some 7.2m by 10.4m would be created. This would provide approximately 75 m² of usable external amenity space which would not be in shadow and would not be directly overlooked, to which the less usable external space would be an addition. Applying the benchmark standards set out in Figure SC5.2, that amount of usable external space would be suitable for a dwelling with 5 habitable rooms and over. In my view, this permutation would provide an acceptable standard of accommodation. 70. In granting planning permission for this permutation, it is open to me to impose a condition removing the permitted development rights provided by Class E, Part 1, Schedule 2 of the GPDO. Such a condition would meet the relevant tests set out in the Planning Practice Guidance (PPG). In particular, it would be relevant to the development to be permitted and necessary to overcome the harms that I have identified in relation to Permutation 2, in which the single-storey extension and the outbuilding are both in place. It would of course be open to the appellant to apply for planning permission for an outbuilding, which the Council could then determine on its own merits. 71. I conclude that Permutation 3 would accord with the development plan. Accordingly, I conclude that planning permission ought to be granted for this Permutation, subject to a condition removing certain permitted development rights.”
“As part of that, I have considered whether a smaller outbuilding would be acceptable within those permutations, particularly in terms of making more usable external space available. A smaller outbuilding than that existing could still form part of the matters stated in the notice. However, I do not have any details relating to a smaller outbuilding and it would not be appropriate for me to impose a smaller outbuilding on the appellant (or for that matter the Council) without having such details available.”
“ Because it is reasonable to assume that national planning policy is familiar to the Secretary of State and his inspectors, the fact that a particular policy is not mentioned in the decision letter does not necessarily mean that it has been ignored (see, for example, the judgment of Lang J. in Sea Land Power & Energy Limited v Secretary of State for Communities and Local Government[2012] EWHC 1419 (QB) , at paragraph 58).”
“58 The existing outbuilding, as shown, has a footprint of some 45.9m². The footprint of the original dwelling is some 41m² with the corresponding floor area of the original dwelling being some 82m². Put another way, the footprint of the outbuilding exceeds that of the original dwelling and is more than half of the total floor area of the original dwelling. 59. It is settled case law that the size of the building is not, in itself, determinative of whether a development falls within the provision of Class E1. Nevertheless, the Courts have held that the size of the outbuilding is a material consideration and indeed that, when the matter is looked at as a whole, size may be an important consideration. In this case, it is not the size of the outbuilding in terms of square metres that important: it is relationship of that size that to the main dwelling. In that context, it is difficult to accept that the outbuilding can be regarded as being genuinely incidental to the enjoyment of the dwellinghouse as such. 60. It is also settled case law that, in order to qualify as permitted development under Class E, an outbuilding must be required for some incidental purpose (emphasis added). It is therefore necessary to identify the purpose and incidental quality in relation to the enjoyment of the dwellinghouse, and whether the outbuilding is genuinely and reasonably required to accommodate the use and thus achieve that purpose. 61. The Oxford English Dictionary (OED) defines ‘required’ as ‘needed for a purpose’. In relation to Class E, the Courts have interpreted ’required’ as meaning ‘reasonably required’. In the context of Class E, this translates as reasonably needed for a purpose incidental to the enjoyment of the dwellinghouse as such. 62. The proposed outbuilding, as shown in Drawing Nos S/467/01 and 02, is effectively divided into three spaces. One space is shown as a gym, with some storage. Another space is shown as an office. The third space has no particular use attached to it but is shown as accommodating some white goods. 63. At the time of my site visit, there was some gym equipment in the space designated as a gym. The space/equipment did not give the impression of being well-used, but the equipment was nevertheless there. The space designated as an office is of a size that could reasonably be considered to be incidental to the enjoyment of the dwellinghouse as such, in the form of a study. The small size of the original dwelling is such that a study could not reasonably be accommodated within it. 64. The difficulty is with the third space. The fact that the space is not specifically identified or designated for a specific purpose suggests that it is not actually required for any purpose incidental to the enjoyment of the dwellinghouse as such. I accept that the installation of the white goods there would be useful given the small size of the original dwelling, as would the additional space for storage. Nevertheless, the entirety of the area of this third space cannot be considered as being as reasonably required for a purpose incidental to the enjoyment of the dwellinghouse. 65. For these reasons, I consider that the outbuilding proposed in Permutation 2 is not, when taken as a whole and as a matter of fact and degree, genuinely and reasonably required for purposes incidental to the enjoyment of the dwellinghouse as such. It follows that the size of the outbuilding is larger than it needs to be in order to accommodate those purposes that are reasonably required (the gym and the office). As such, it would not constitute permitted development under Class E, Part 1, Schedule 2 of the GPDO. 66. I have no reason to doubt that the appellant has the funds and motivation to erect both the outbuilding and the single-storey extension, and in that sense rebuilding the outbuilding would be a realistic prospect. It is of course entirely possible that a smaller outbuilding could qualify as permitted development under Class E. However, a smaller outbuilding would be more desirable than the existing outbuilding, and therefore would not constitute a viable fallback position.”