A detailed gradiometer survey was conducted over land at College Fields, Marlborough, Wiltshire (NGR 417533, 169065) with the aim of establishing the presence, or otherwise, and nature of detectable archaeological features to inform a planning application for housing and a new primary school; to be submitted to Wiltshire Council. The project was commissioned by Edgars Limited on behalf of Marlborough College following the recommendations of a desk-based assessment undertaken by Wessex Archaeology which established the potential for the presence of buried archaeological remains. The survey area consists of two adjacent fields situated approximately 1km from the centre of Marlborough, one large arable field and another smaller recreational space. The detailed gradiometer survey was undertaken between 7th and 9th April 2015 using Bartington Grad601 instruments, and has demonstrated the presence of anomalies of potential archaeological interest along with ridge and furrow, superficial geology, ploughing, some trends of uncertain origin and a modern service.