Groundworks in Oxshott
Specialized engineering for the sandy soil conditions of Oxshott's private estates. We deliver precision basements and drainage solutions to KT22 with local expertise.
Engineered for Oxshott
From the sandy Bagshot beds of the Crown Estate to the clay heavy woodlands. We understand the specific ground conditions that dictate build quality in Oxshott.
The Oxshott Formation
Oxshott is geologically distinct, often characterized by the Bagshot Beds (sand) sitting atop the London Clay. This unique layering often creates "perched water tables"—where water sits in the sand layer, unable to drain into the clay below.
Standard foundations often fail here due to "running sand" or differential settlement. We use specialized techniques to stabilize loose granular soils while sealing off the clay beneath.
In sandy areas like the Crown Estate, we utilize closed-shuttering and trench boxes to prevent trench collapse during excavation, ensuring worker safety and structural integrity.
Where foundations reach the deeper clay layer, we install compressible void formers (Clayboard) to absorb ground movement and prevent damage to new structures.
Rythe & Surface Water Management
While less prone to river flooding than Leatherhead, Oxshott suffers from surface water flooding due to the clay substrate preventing infiltration. The River Rythe can also cause localized issues. We design SUDs (Sustainable Drainage Systems) that handle high runoff volumes.
Deep Bore Soakaways
Where surface clay blocks drainage, we can drill deep bore soakaways to reach the permeable chalk or sand layers below, bypassing the problem soil entirely.
Hydro-Brakes
For connections to the main sewer, we install flow-control hydro-brakes that release storm water at a controlled rate, satisfying Elmbridge planning requirements.
Permeable Paving
Essential for large driveways in private estates. We install Resin Bound or block paving on engineered sub-bases that allow water to return to the ground naturally.
Planning Resources
Elmbridge Planning
Check conservation areas (e.g., Fairmile) and submit applications for Oxshott.
Visit Portal →Flood Risk Map
View the official surface water flood risk zones for the Oxshott/Cobham area.
Check Postcode →Thames Water
Developer services for build-over agreements and sewer connections.
Developer Services →