Standen Park, Lancaster for Gleeson Homes - Town houses built into hillside.

A reinforced slab was formed, with drainage chases included, following which the reinforced ground retaining walls were constructed. Cavity drainage membrane was applied to the walls and laid over the slab, with a screed formed over. Inner block walls walls were then built, with ties fixed via sealed plugs.

The floor membrane was turned up to meet the dpc at non-retaining walls and the drainage channels taken to low ground at the front of the properties.

This form of drained cavity construction, as defined as a Type C of BS8101:1990, Protection Of Structures Against Water From The Ground, gives good thermal values and is recognized in that Standard as being the safest available because ground water is controlled rather than being blocked and at risk of hydrostatic pressure.