Ground conditions and slabs in Oran Park NSW

Two things about the ground under Oran Park are worth holding together. The first is regional: the suburb sits on the Cumberland Plain, where soils weather from Wianamatta Group shale into clay rich profiles that change volume with moisture. The second is local: this land was a motor racing circuit until 2010, so much of it has been cut, filled and regraded. Neither fact tells you what your lot is. Both are reasons to read the soil report your builder commissioned, because it is the document your slab was designed from, and we will not publish a site class for the suburb in its place.