| Ton Farmhouse | |
| Type: | Farmhouse |
| Map Relief: | yes |
| Coordinates: | 51.6577°N -2.9194°W |
| Location: | Llangybi, Monmouthshire |
| Built: | early 17th century |
| Architecture: | Vernacular |
| Governing Body: | Privately owned |
| Designation1: | Grade II* listed building |
| Designation1 Offname: | Ton Farmhouse |
| Designation1 Date: | 4 March 1952 |
| Designation1 Number: | 2686 |
Ton Farmhouse, Llangybi, Monmouthshire is a farmhouse dating from the early 17th century. John Newman, in his Monmouthshire Pevsner, describes it as a "perfect Monmouthshire farmhouse". Ton is a Grade II* listed building, its listing noting that it is a "remarkably good survival" of a prosperous 17th century Welsh farmhouse.
Sir Joseph Bradney records the site of the farmhouse as Ton-y-beddau, which he translates as "the glade of the graves" and refers to a "vague tradition of a battle and the burying of corpses". His multi-volume study, A History of Monmouthshire from the Coming of the Normans into Wales down to the Present Time, also provides a lengthy pedigree of the owners of the surrounding lands. Cadw dates the construction of Ton Farm to the early 17th century. The farmhouse was "greatly enlarged" in 1663, with an inscribed datestone recording the date. In the 1895 Monmouthshire edition of Kelly's Directory, the farm is noted as being under the management of John Griffiths, farmer.[1] Ton remains a privately owned house and is a Grade II* listed building. The architectural historian John Newman describes it as a "perfect Monmouthshire farmhouse".
The farm is of two-storeys, built in whitewashed old red sandstone rubble. The roofs are of Welsh slate. Most of the windows were replaced in the 19th century but the house has been "little altered" since this date. Sir Cyril Fox and Lord Raglan include a plan of Ton in the third volume, Renaissance Houses, c. 1590–1714, of their three-volume study of the vernacular architecture of the county, Monmouthshire Houses. Their plan shows the three-room ground-floor layout of the house after the 1663 alterations, with the hall and parlour divided by a cross-passage, and a pantry to the rear of the hall. The plan includes illustrations of the elaborate joinery in the parlour, a feature also noted by Cadw. A line drawing of a section of moulding from the house is given in Peter Smith's Houses of the Welsh Countryside.
. Joseph Bradney. The Hundred of Usk, first part. A History of Monmouthshire from the Coming of the Normans into Wales down to the Present Time Volume 3, Part 1. 1993. 1921. Academy Books. London. 896118895. 9781873361177.
. John Newman (architectural historian). The Buildings of Wales. Gwent/Monmouthshire. 2000. Penguin. London. 0-14-071053-1.
. Peter Smith (architectural historian). Houses of the Welsh Countryside. 1975. Her Majesty's Stationery Office. London. 0-11-700475-8. 868639211.