Peter Baxter Associates conducted a combined geotechnical and environmental site investigation for a low rise block of social housing flats in Rochester, Kent. The Phase 1 desk study indicated that a small historic landfill was less than 100m from the site, giving moderate risk of the migration of landfill gases. To assess this risk, two gas monitoring installations were installed in windowless sampler holes during the geotechnical investigation.

Site monitoring of the boreholes for landfill gases was carried out by PBA. None were detected. The proximity of the site allowed PBA to quote very competitive visit rates.


‘Petworth’ Biggin Hill. Peter Baxter Associates provide geotechnical design advice to projects of all sizes in Kent and elsewhere. ‘Petworth’, Biggin Hill illustrates the many smaller redevelopment projects that we assist with. An existing bungalow was replaced by two new semi-detached properties.

PBA issued the site investigation report including bearing capacity and tree effects, within 15 working days of being engaged.


Drilling a hole in the floor of a bookmakers! Peter Baxter Associates used a handheld hydraulic hammer to obtain a 4m windowless sample inside a Victorian building for this retail to residential development incorporating a basement.

A standpipe was installed to allow site monitoring of groundwater in the London Clay strata.


Old High Street, Folkestone. As part of a retail redevelopment in historic Folkestone, Kent, an external staircase was required. Peter Baxter Associates measured soil strength parameters in a hand dug trial pit and provided a bearing capacity estimate to the structural engineer.

This project typifies PBA’s small scale geotechnical design services.


Peter Baxter Associates were commissioned to carry out a geotechnical and environmental site investigation for a proposed new visitor’s centre at Margate Caves, Kent. The site was uneven and heavily overgrown. The access restrictions and uncertainty over the strength of the historic chalk caves was resolved by using a lightweight tracked sampler rig drilling to 5m depth.

PBA interpreted the complex geology of the site and recommended geotechnical design solutions for the foundations of the proposed portal frame structure.


A 1960’s former police station at Northfleet, Kent, was investigated by Peter Baxter Associates. The site investigation comprised a 10m deep borehole, trial pits, in situ strength testing and in situ soakaway testing.

On completion of the works an environmental desk study and intrusive site investigation were carried out.

An interpretive report containing the geotechnical design of foundations and recommendations for ongoing site testing was completed, all for a very competitive price.