19 Mrs Francis claims that the retaining wall was constructed to support raised ground levels in the Baronians' backyard, however, the Baronians refute this. I observed that ground levels at the western end of the Baronians' yard were largely identical to adjacent ground on the adjoining public walkway, and that ground level at the eastern end appears unchanged around the base of an old, dead tree stump. Additionally, Mrs Francis advised that there was sloping grass and no retaining wall on her land when she moved into her house in 1990, and that her driveway east of the Baronians' backyard was excavated in about 1994. I observed that Mrs Francis' driveway has a retaining wall almost 1 m high to the Baronians yard, and that the driveway below the south-eastern corner of the Baronians' yard is at a similar level to the concrete of her backyard beside the retaining wall subject of this application. On that basis, I find that the retaining wall was built mostly if not entirely to hold the bank created by excavation on Mrs Francis' property, and the Baronians have not carried out any significant filling of their backyard.