Ground Heave

[Outtheway]

Whilst I know it relates more to clay soils is it possible/are there examples of damage to walls/buildings constructed in close vicinity to where mature trees have been removed on silty/sandy soils?

[Outtheway]

Thanks methyl the trees have been removed (25-30foot conifers) and the plan shows the developer is intending to construct a 1.8m wall on the same line as the tree line and two storey house within 1.5m of the ex tree line

[The Builder]

If the wall is a completely new construction, then there will be no problem. Excavation for depth should take account of the voids left by the removed roots.

Generally, foundation depth will have to be below previous root level.