Headland Archaeology (UK) Ltd undertook a geophysical (magnetometer) survey covering 100 hectares of agricultural land on the north-western periphery of Chichester to provide information about the archaeological potential of land proposed for predominantly residential development. An area of definite archaeological potential has been identified to the immediate south of Whitehouse Farm characterised by a complex of interlinking ditched enclosures either side of a trackway, and being suggestive of Romano-British activity. At the periphery of the complex, an area of possible industrial activity is suggested. In addition, the survey has identified a ditch which is probably part of the Chichester Entrenchments - a system of late Iron Age defensive earthworks which are recorded as a Scheduled Ancient Monument (Ref. 1005856). Elsewhere, few anomalies of archaeological potential have been identified with the vast majority of anomalies being due to localised variations in the soils and superficial deposits. There is no indication from any other source to suggest that the magnetic data provides anything other than an accurate representation of the sub-surface conditions within the proposed development area. Therefore, based on the results and interpretation of the data, the archaeological potential across the majority of the site is considered to be low, with a high archaeological potential ascribed to the field immediately west of Whitehouse Farm.