Archaeology South East was commissioned by The Clancy Group to carry out a detailed fluxgate gradiometer survey on land at Three Oaks, East Sussex, prior to construction of a pumping station with contractor's compound, and a water treatment works. The survey covered approximately 1.5 hectares and took place between the 11th and 12th September 2014. The survey area consisted of three crop fields, north and south of Butcher's Lane. The survey successfully detected limited evidence for possible archaeological activity. This evidence was largely restricted to a number of linear moderate positive anomalies and three discrete moderate positive anomalies. Evidence for later agricultural activity in the form of plough marks was also identified.