The archaeological assessment relates to the proposed development of Stowe Music School, part of Stowe School, North Buckinghamshire (NGR 468440 237550). The report presents the results of both an original field survey and a desk-based study of published archaeological information in the public domain. The desk-based study was carried out relative to a Study Area comprising a 500m buffer zone centred on the Proposed Development Area. Searches of national and county databases, the study of modern and historic mapping, aerial photography and written accounts, and the results of field survey, have identified a total of 175 sites of archaeological significance within the Study Area. All sites have been graded according to their perceived archaeological importance. The scale of impact of the proposed development upon those identified archaeological sites has then been assessed, and the significance of each impact has been determined relative to the importance of each individual site. The subsequent evaluation was undertaken to assess the nature and extent of any archaeological remains that may be affected by the proposed development and has generated a reliable predictive model of the expected level of archaeological remains. The evaluation comprised three archaeological trial trenches, the layout of which targeted key areas within the footprint of the proposed development area and also areas of potential archaeology identified by previous desk-based assessment. Searches of national and county databases, the study of modern and historic mapping, aerial photography and written accounts, and the results of field survey, have identified a total of 175 sites of archaeological significance within the Study Area. All sites have been graded according to their perceived archaeological importance. The scale of impact of the proposed development upon those identified archaeological sites has then been assessed, and the significance of each impact has been determined relative to the importance of each individual site. In total, 6 sites are considered to be subject to direct adverse impact by the proposed development. The level of impact on 4 of these sites - Stowe Conservation Area, Stowe Grade I Registered Park, the Towcester to Alchester Roman road and some Post-Medieval garden walkways - is considered minor. The significance of this impact on both the road and the garden walkways is low, the significance of impact on Stowe Registered Park is medium and that on Stowe...