1:50,000 Solid Geology

Surface geology of the region, known as drift, showing the position and the general character of all geological materials that occur at ground level. Solid rock concealed beneath the drift is known as solid geology.

Natural Subsidence

Natural Subsidence is the lateral and downward movement of the ground and is caused by a number of geological and environmental factors. Such movements are typically in the order of a few centimetres but in exceptional circumstances can be larger.

This Natural Subsidence has the potential to cause subsidence damage to buildings and structures. The level of significance is expressed on a scale of A to E (A being LOW and E being HIGH)

Borehole Index

Records of boreholes that are catalogued for the whole of Great Britain, including a reference number and drilled length. Boreholes have been used for mineral or hydrocarbon exploration, water extraction and monitoring (e.g. for site investigations).

Mines, Quarries and Shallow Mining

Indicates whether a property is in a coal mining area, in an area in which coal bearing strata are known or expected to be present and if quarrying / mineral extraction activity is being carried out.

Radon Protection Measures

Measures required for new properties / extensions to existing ones under building regulation BR211, particularly in areas where the level of radon is above the action level defined by the NRPB.