This building dates to 1514. Southwick Barn is composed of two separate building frames. The larger and earlier building is a barn of five bays with a central threshing floor, dated to 1514. Unlike many historic barns in Hampshire, it lacks side aisles. In other respects it is typical of sixteenth-century barns in this region in that it has a clasped-purlin roof, queen-strut trusses, and curved wind braces. Southwick Barn appears to have been a rectorial or tithe barn, in the hands of the Prior and convent of Southwick until the dissolution in 1538 (VCH Hants, iii, p. 165). In 1512, the spire of the Priory church was struck by lightning and the bulk of the building was destroyed. It appears likely that the predecessor of the present barn was destroyed in the same fire. (Miles and Worthington 1998, VA 29, list 91)