Old Maps and Records

Need A Phase 1 Report?
Purchase securely online now & receive a 10% discount.
What sort of site history does a Phase I search uncover?

An important part of a Phase I desk study is the site history.

Thanks to a variety of archives and records, this section can often stretch back more than a century. It may include old maps, drawings and geological sections, and the trick is knowing where to look.

The Ordnance Survey began producing its County Series of maps with a scale of six inches to the mile in the 1840s. These were accompanied by detailed land use information about agricultural and built up areas. Since then, mapping has become progressively larger scale and an increasing amount of detail has been included.

In some cases, the study will include geological information as far as it is known. This is particularly important in the case of large buildings with deep foundations. It may also draw on information in the Environment Agency’s groundwater vulnerability maps. It will pay careful attention to old sources of pollution nearby such as former factory sites, and may include information about historical mining works in order to estimate the risk of possible subsidence.

With long experience of dealing with the available sources, we not only research past use but interpret and examine the implications of particular features and hazards.