J v IAG New Zealand Ltd [2022] CEIT-2019-0068 [pdf, 530 KB]
...Settlers deposited sand onto peaty soils in the area to “improve” the land. Stable ‘good’ gravels are 30-35 m below ground level. To deal with the challenges of the subsoils, when the neighbourhood was established, 2 m of sandy gravels were laid down and compacted in an attempt to provide stability. This is the base on which the home was built. [9] As discussed below, even with the ground improvements in place before construction, there is a high degree of variability in the...