A total 40 sites are published on the National Heritage List for England as either Scheduled Ancient Monuments or Listed Buildings, in some cases as both. These consist of 27 preceptories, 12 camerae and one membrum, and includes records of 19 extant or ruinous chapels, 15 houses or parts thereof, two dovecots, three barns and a gatehouse. At 18 sites there are various earthworks, mostly enclosures often surrounded by a moat. At some sites there are also fishponds. Each of these sites has a unique number in the list and these numbers will be used in the individual accounts that follow. The only preceptory to be fully excavated is the Templar Preceptory at South Witham in Lincolnshire (NHLE entry 1007688). It provides a good example of what a small preceptory would have looked like at the beginning of the 14th century. This site has been published in full (Mayes, P.2002 Excavations at the Templar Preceptory, South Witham, Lincolnshire, 1965-67 Society for Medieval Archaeology Monograph 19). Although the site was abandoned by the time the manor passed to the Hospitallers, it does provide a yardstick with which to compare the Hospitaller sites studied.
The remains at South Witham were divided into three phases. Phase I dated from before 1185 and continued until 1220-40. This consisted of an aisled hall and various ancillary buildings including a kitchen The absence of a chapel implies that at this stage no ordained brothers were present and the site was a camera rather than a preceptory. During Phase 2 (1220-40 to the late 13th century) there were two halls, a greater and a lesser, a chapel, a kitchen and bake house, a brewhouse, stables, pig sties, a granary and three substantial barns. The whole complex was enclosed and approached through a formal gatehouse. The third and final phase, dating from the late 13th century until the arrest and suppression of the Templars between 1308 and 1312, saw the rebuilding of the Great Hall.
Rigold's (1966) study of the Strood Temple and Harefield camerae gives an indication of what the smaller establishments were like.