"The garden has been excavated in this corner so that it is around 1.5m lower than the ground level to the side and at a similar level to the patio area... The appellant states that the side of the proposed building was excavated around 5 or 6 years ago at the same time as the adjacent boundary wall was built. The excavation of the proposal was temporary in anticipation of a future building. The level area in front of the proposal (to the rear of the house and drive) is obviously the intended permanent ground level."
"5. I do not accept this argument. As the previous Inspector noted in his decision, the calculation of height in Class E is in relation to the ground level immediately adjacent to that part of the building. Although the front edge of the lantern rooflight has now been moved away from the front edge of the building, it remains to be considered in relation to the adjacent ground level relative to other parts of the building relevant to the application of Class E. 6. It is evident that there has been previous ground excavation in this location, which it is said was in anticipation of the construction of the building now proposed. In relation to this it is argued that the ground will be backfilled against the completed building, and that the relevant ground levels in relation to which any measurements should be taken are the resulting ground levels once this has been completed. I reject this argument. It is evident from the vegetated nature of the excavated area and the presence on it of items including wooden storage cabinets abutting the boundary wall and a children's trampoline that the excavated area has been in existence for a considerable time and has become an actively used part of the domestic curtilage in its current form. Any fill material place against the completed building would probably be derived from floor slab and footings excavations yet to be undertaken, since none of the previously excavated material appears to remain on the site. In light of these factors 1 consider that the relevant ground levels from which heights should be calculated should be those existing at the time of the application. 7. Moreover, even should backfilling to some previous ground level be carried out post construction along the northern side of the building, backfilling will not be possible on the buildings southern flank, which is to be built abutting the existing brick boundary wall. Regardless of the argument advanced in respect of the northern side of the proposed building, therefore, the existing ground levels immediately adjacent to the southern flank of the building constitute the level from which the relevant building height calculations should be made. 8. The height conditions within Class E are clearly worded. Dealing first with the application of subsection I(e)(ii), the lantern rooflight structure is plainly an integral part of the building. Although the submitted drawings show the structure set in marginally from the outer face of the solid wall forming the proposed building's southern flank, the lantern's structure's southern side nonetheless rests on top of that external wall. Whilst there would be adjacent higher ground adjacent to some parts of the building, the ground level is lower along the building's southern flank. Measured relative to this lower ground level, the height of the adjacent part of the proposed building would exceed 3m, and so would not fall within the height limitation imposed by subsection I(e)(ii)."