Between the 2nd and the 5th of March 2020 York Archaeological Trust conducted an evaluation at 20 Castlegate, York (SE 60414 51605). The work was undertaken for Mr B. Crux in response to an archaeological condition imposed by the City of York Council (19/1006/FUL). The work was based on a Written Scheme of Investigation produced by YAT. The works involved the excavation and recording of a 2.2m x 2m trench. This was stepped in the centre to safely reach a depth of 1.97m BGL or 11.18m AOD. The evaluation found deposits and finds from the Roman period to modern times. Significant deposits of Roman, possibly Anglo-Scandinavian, as well as medieval pits were found. The pits are possibly associated with the Franciscan Friary. Above these were undated horticultural or garden deposits and post medieval domestic refuse pits.