The date and intended location for this scheme for a townhouse for Henry Drummond is unknown. Stylistically the designs are of a later date, and King tentatively suggests c1772 as a possibility. From 1772 Drummond was no longer residing in Great George Street, and therefore King suggests these drawings form part of a scheme for a newly acquired property. However, King notes the designs may date later than this, highlighting design elements in the façade, including the sphinx and the style of the upper string course, as possible indicators. Therefore these drawings have been dated to c1774.