Oxford Archaeology was commissioned by Prospect Archaeology Ltd on behalf of CALA Homes (Chiltern) Ltd to undertake an archaeological evaluation at Land off Weston Road, Aston Clinton, Aylesbury, Buckinghamshire. Two phases of trenching were undertaken in late 2016 and early 2017 to assess the archaeological potential of a proposed new residential development for up to 75 houses. A total of 15 trenches were excavated across the site and confirmed the absence of archaeological features indicated by a previous geophysical survey. Alluvial deposits were recorded within all the trenches, resulting from past overbank seasonal flooding from the adjacent stream. The risk of flooding may have deterred occupation within the area and thus explains why the site had hitherto only been used as agricultural land.