Report on a magnetometry survey conducted on 34ha of land at Manor Farm, Irby in the Marsh, to inform the proposed construction of a solar farm. A number of anomalies representing possible pre-modern ditches and pits were identified across the site, including a dense cluster of pits in the northeastern corner of the site. A dense zone of strong magnetic response in the centre of the site may represent a former structure. Anomalies corresponding to field boundaries depicted on historic mapping were also noted.