The owners of a site centred are undertaking geotechnical survey work in advance of a possible future application for planning permission to redevelop the site for residential use. Discussions with the Central Bedfordshire Council Archaeologist identified the need for archaeological monitoring of the geotechnical survey work. Previous investigations in the area around Caddington have produced evidence dating from the Palaeolithic period and so specialists in geoarchaeology (Peter Allen) and Palaeolithic archaeology (David Bridgland and Mark White) attended the site to assess the potential for Palaeolithic deposits. Seven geotechnical test pits were examined and the three with the greatest potential for survival of Palaeolithic deposits were examined by specialists in Quaternary geoarchaeology. The investigation of the site found no evidence of activity pre-dating the modern use of the site. No archaeological features were identified in the trenches and no artefacts were recovered from the trenches or the excavated spoil. The site has been remodelled in the modern period. The higher ground, mostly in the northern half has been subject to truncation probably during the construction of a vehicle testing ground and its subsequent conversion to a vehicle storage area. In the southern half of the site some of the ground has been built-up during the construction of the current vehicle storage area. Investigation of the geological deposits showed a layer of Clay-with-flints overlying the Chalk in the northern part of the site. A Brickearth deposit was identified in one trench, within a small circular depression in the Clay-with-flints. This depression was probably caused by solution of the Chalk below. No worked flint was found in the Brickearth and none was identified during the excavation of the other trenches.