The monument includes a major Roman villa, a later, Anglo-Saxon, settlement and traces of earlier human use of the site during the Mesolithic and Neolithic periods and from the Late Bronze Age to the Late Iron Age. It survives in buried form and is situated on low-lying ground on the eastern bank of the River Darent. Covering an area of around 2.6ha, the villa complex is one of the largest in the country. It has been shown by partial excavation in 1894-5, 1969 and 1972 to have been built during at least four main phases of construction between the late first and late fourth centuries AD, resulting in the development of an extensive group of buildings and structures with flint footings, ranged around two, roughly north-south aligned, sub-rectangular, walled courtyards. The main domestic range is situated along the northern side of the complex, and faces towards the south. This was constructed initially as a simple rectangular building of around six rooms, including a dining room and kitchen, served by a detached bath house located c.100m to the south. During the mid to late second century, a new bath house was added to the western end of the main range and two further blocks of rooms were built to the west and east. These have been interpreted as originally free-standing structures subsequently incorporated into the main range by the construction of further linking rooms. By this time, the residential portion of the villa contained at least 50 rooms, and the level of comfort is indicated by the fact that many of these were heated by hypocausts, or underfloor heating systems, had tessellated or tiled floors and were decorated with painted wall plaster. By the early fourth century, access to the main residential complex was via a monumental gateway to the south and through an inner courtyard or formal, walled garden. Situated immediately to the south of the gateway is a small, sub-square structure, with a small, square lobby on its northern side, interpreted as a shrine. Features discovered within the inner courtyard include a large, centrally placed water tank, with an associated cistern, which may have been used as an ornamental pool or water management feature. To the south, situated along the western and eastern peripheries of the complex, are a series of outbuildings interpreted as barns, storehouses or worksheds, used for agricultural and industrial activities. Around 140m to the south west is a large, rectangular, aisled building measuring c.50m by 20m which itself underwent several phases of development. This has been interpreted as a separate domestic unit, possibly housing a villa estate manager. A timber-lined water channel, or leat, found adjacent to the river bank to the west of the villa buildings may indicate the presence of a nearby watermill. During the second half of the fourth century, the villa was occupied on a reduced scale. From this time, parts of the former domestic ranges fell out of use, or were utilised as workshops or storerooms. The excavations also revealed several contemporary trackways, a tile-built oven, and large quantities of Roman coins and pottery sherds. Partial excavation during the construction of a pipeline in 1972 indicated that the western periphery of the villa complex, immediately adjacent to the river, overlies traces of the earlier use of the site during the prehistoric period. The earliest deposits were found to be an assemblage of over 2,000 pieces of worked flint and around 90 flint tools dating to the Mesolithic period (10,000-3,500BC), all covering an area of 32 sq.m. These have been interpreted as representing a tool making site. Several nearby pits and other features, now destroyed by the construction of the pipeline, were dated by pottery sherds and flint flakes found within them to the Neolithic period (3,500-2,000BC) and the Late Bronze Age (900-600BC). Pottery sherds dating to the Late Iron Age (300-50BC) indicate that the site was also inhabited during this period. Also destroyed during the construction of the pipeline, and overlying the western periphery of the earlier villa, were five buildings dating to the fifth-sixth centuries AD, representing an Anglo-Saxon settlement. Further traces of the settlement will survive in buried form in the unexcavated areas. The largest building discovered measured c.7m by 5.18m and was east-west aligned, rectangular, and made of wood. This would have had at least three bays capped by a ridged roof with gabled ends. Nearby were four, east-west aligned, sunken-floored buildings, the largest of which measured 4.27m by 2.59m. Associated, contemporary artefacts discovered during the excavation included pottery sherds and loomweights. The modern fences which cross the monument are excluded from the scheduling, although the ground beneath them is included. ASSESSMENT OF IMPORTANCE Romano-British villas were extensive rural estates at the focus of which were groups of domestic, agricultural, and occasionally industrial buildings. The term "villa" is now commonly used to describe either the estate or the buildings themselves. The buildings usually include a well-appointed dwelling house, the design of which varies considerably according to the needs, taste, and prosperity of the occupier. Most of the houses were partly or wholly stone-built, many with a timber-framed superstructure on masonry footings. Roofs were generally tiled and the house could feature tiled or mosaic floors, underfloor heating, wall plaster, glazed windows and cellars. Many had integral or separate suites of heated baths. The house was usually accompanied by a range of buildings providing accommodation for farm labourers, workshops and storage for agricultural produce. These were arranged around or alongside a courtyard and were surrounded by a complex of paddocks, pens, yards and features such as vegetable plots, granaries, threshing floors, wells and hearths, all approached by tracks leading from the surrounding fields. Villa buildings were constructed throughout the period of Roman occupation, from the first to the fourth centuries AD. They are usually complex structures occupied over several hundred years and continually remodelled to fit changing circumstances. They could serve a wide variety of uses alongside agricultural activities, including administrative, recreational and craft functions, and this is reflected in the considerable diversity in their plan. The least elaborate villas served as simple farmhouses whilst, for the most complex, the term "palace" is not inappropriate. Villa owners tended to be drawn from a limited elite section of Romano-British society. Although some villas belonged to immigrant Roman officials or entrepreneurs, the majority seem to have been in the hands of wealthy natives with a more-or-less Romanised lifestyle, and some were built directly on the sites of Iron Age farmsteads. Roman villa buildings are found throughout lowland Britain and between 400 and 1000 examples have been recorded in England. Of these less than 10 are examples of `major' villas. These were the largest, most substantial and opulent type of villa which were built and used by a small but extremely wealthy section of Romano-British society. Roman villas provide a valuable index of the rate, extent and degree to which native British society became Romanised, as well as indicating the sources of inspiration behind changes of taste and custom. In addition, they serve to illustrate the agrarian and economic history of the Roman province, allowing comparisons over wide areas both within and beyond Britain. All major villas will be identified as nationally important. Beginning in the fifth century AD, there is evidence from new settlements, distinctive burials and cemeteries, and new forms of pottery and metalwork, of immigration into Britain of settlers from northern Europe. At this time the Roman rural settlement pattern appears to have been disrupted, and although some Roman settlements continued in use, the native Britons rapidly adopted many of the cultural practices of the new settlers and it soon becomes difficult to distinguish them in the archaeological record. Although it has been partially disturbed by modern agricultural activity, tree growth, pipeline construction and gravel working, the Roman villa and the associated, later Anglo-Saxon settlement east of Darenth Court Farm survive in buried form and have been shown by partial excavation to contain archaeological remains and environmental evidence. The villa is the largest and most complex example of those which cluster along the Darenth valley, and may be the largest in Kent. Traces of earlier, prehistoric features beneath the later villa serve to illustrate the continued importance of the site for human use over a period of several thousand years.