Kent’s geology shifts noticeably across the county, from chalk downland in the north to the sandstone and clay of the Weald further south, and that variation has a real, practical effect on GPR performance depending on where in the county a survey is being carried out.

The North Downs and much of east Kent sit on chalk, generally allowing good radar penetration and clear resolution. Moving south into the Weald, ground conditions shift toward heavier clay and sandstone, which can behave quite differently under GPR, sometimes limiting depth of penetration in the denser clay areas. Because a single county can span such different ground types, our surveyors treat each site on its own merits rather than assuming Kent-wide conditions are consistent.

Kent’s long agricultural history, particularly its orchards, hop gardens and more recently vineyards, means a fair amount of our GPR work in the county relates to land with a farming heritage rather than dense urban infrastructure. These sites can still carry buried services, drainage systems, old field boundaries or agricultural infrastructure not always reflected in modern records, particularly where agricultural land is being considered for residential or commercial development.

Kent’s coastline, including the well-known chalk cliffs around Dover and the softer, more erosion-prone ground further along the coast, means ground stability is a genuine consideration for GPR survey work in coastal areas. Understanding local ground behaviour matters not just for utility detection, but for correctly interpreting results in areas where natural ground movement may already be a factor.

Subvision Surveys is SSIP and ISO accredited, with a team of over 25 surveying professionals delivering GPR surveys across Kent and the wider South East. Contact Subvision Surveys today to discuss a GPR survey in Kent or Surrey, or speak to one of our experts on 0333 920 942.