Report on a magnetometry survey conducted to inform the proposed construction of a new residential estate in two fields on land off Lincoln Road, Ruskington. Seven linear anomolies were identified in the northern field; one aligned closely with a pre-1888 field boundary seen on historic mapping (this was also present in the southern field), while the others were interpreted as representing agricultural features, possibly post-medieval or modern land drains. These possible drains had three distinct orientations, suggesting three different phases of drainage works. A number of linear anomolies were identified in the southern field, including a north-south aligned linear anomoly proposed to be the continuation of the pre-1888 field boundary seen in the northern field. An east-west aligned linear anomoly intersects this at right angles; this is suggested to be part of the same field boundary system. Towards the south of the field were a number of positive linear anomolies. Two of these can be seen on aerial photography and satellite imagery and are suggested to be Roman in date. A series of irregular linear anomolies were considered to be possibly geological in origin.