Monmouthshire is a county and principal area of Wales. It borders Torfaen and Newport to the west; Herefordshire and Gloucestershire to the east; and Powys to the north. The largest town is Abergavenny, with the other major towns being Chepstow, Monmouth, and Usk. The county is 850 km2 in extent, with a population of 95,200 as of 2020. The present county was formed under the Local Government (Wales) Act 1994, which came into effect in 1996, and comprises some sixty percent of the historic county. Between 1974 and 1996, the county was known by the ancient title of Gwent, recalling the medieval Welsh kingdom. In his essay on local government in the fifth and final volume of the Gwent County History, Robert McCloy suggests that the governance of "no county in the United Kingdom in the twentieth century was so transformed as that of Monmouthshire".
Little Pitt Cottage is a medieval house in Llanarth, Monmouthshire, South Wales. It was designated a Grade II* listed building in 1956, its listing record describing it as a "fine and exceptionally intact timber-framed house".
Allt-y-Bela in Llangwm, Monmouthshire, Wales, is a house of late medieval origin with additions from the sixteenth to the twenty-first centuries. During the early seventeenth century, it was owned by Roger Edwards, a wealthy Midlands merchant and the founder of Usk Grammar School. Edwards made significant alterations in the Renaissance style to the medieval cruck house. By the twentieth century, the house was in ruins until restored by the Spitalfields Historic Buildings Trust in the early twenty-first century. Now owned by the garden designer Arne Maynard, the house is a Grade II* listed building recognising its significance as an "exceptionally important sub-medieval house with ambitious early renaissance additions".
Church Farmhouse, Kemeys Commander, Monmouthshire is a former parsonage dating from the mid-16th century. The farmhouse and the attached barn are Grade II* listed buildings.
Great Tresenny Farmhouse, Grosmont, Monmouthshire is a farmhouse dating from c.1600. Situated just to the south of the village, the farmhouse is a Grade II* listed building.
Howick Farmhouse, in the hamlet of Howick, near Itton, Monmouthshire is a farmhouse dating from the mid-16th century. It is a Grade II* listed building. Its associated barns and stable block have their own Grade II listings.
Newhouse Farmhouse, Llanvetherine, Monmouthshire is a farmhouse dating from the late-16th century. It is a Grade II* listed building. Its associated barns and stable block have their own Grade II listings.
Pen-y-clawdd Farmhouse, Raglan, Monmouthshire is a gentry house dating from the early 17th century. Owned by the Bradburys, High Sheriffs of Monmouthshire, and later by the Williams family and then the Prichards of Penallt, it remains a privately owned farmhouse. The building is Grade II* listed.
Monmouthshire Houses: A Study of Building Techniques and Smaller House-Plans in the Fifteenth to Seventeenth Centuries is a study of buildings within the county of Monmouthshire written by Sir Cyril Fox and Lord Raglan and published by the National Museum of Wales. The study was published in three volumes; Part I Medieval Houses, Part II Sub-Medieval Houses, c. 1550–1610 and Part III Renaissance Houses, c. 1590–1714, between 1951 and 1954. The series was republished by Merton Priory Press in 1994. A later historian of Welsh architecture, Peter Smith, described Fox and Raglan’s work as equal in importance, in its own field, to Charles Darwin's On the Origin of Species.
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.
The Cwm, Llantrisant, Monmouthshire is a farmhouse dating from the 16th century. Expanded in both the 17th and 18th centuries, The Cwm is a Grade II* listed building, its listing describing it as "a substantial farmhouse of distinctive T-plan".
Pentwyn, Llanllowell, Monmouthshire is a farmhouse dating from the mid-16th century. The house is Grade II* listed, with the adjacent barn having its own Grade II listing.
Wern-ddu farmhouse, Llantilio Pertholey, Monmouthshire is a farmhouse of 17th century origins. It has been significantly altered in the 18th, 19th and 20th centuries and the Monmouthshire antiquarian, Sir Joseph Bradney recorded that it had "suffered so much by continual alterations that it shows but little of its antiquity". It is a Grade II* listed building.
Llwyn-y-gaer House, Tregare, Monmouthshire is a farmhouse dating from the mid 17th century, although with earlier origins. Described by John Newman as "one of the largest and finest Monmouthshire farmhouses of its period", the house is Grade II* listed.
Great Killough, Llantilio Crossenny, Monmouthshire is a substantial manor house of late medieval origins. The majority of the current structures date from three building periods from 1600 to 1670. It is a Grade II* listed building.
Blaengavenny Farmhouse, Llanvihangel Crucorney, Monmouthshire is a farmhouse of late medieval origins. It is a Grade II listed building. Its adjacent barn and granary have separate Grade II listings.
Chapel Farmhouse and its attached outbuilding, Llanarth, Monmouthshire is a house dating from the 16th century. Greatly enlarged in the 17th century, it remains a private house. It is a Grade II* listed building.
Upper Green, Llantilio Crossenny, Monmouthshire is a farmhouse dating from the Medieval period. The original hall house was enlarged in the 17th century. In the 18th century, a substantial new farmhouse was built which incorporated the hall house as a service wing. Upper Green remains a private house and is a Grade II* listed building.
Persondy (the Priest's House), Mamhilad, Monmouthshire is a former parsonage dating from the late 16th century. It is a Grade II* listed building. The adjacent barn, now a separate residence called Ysguborwen, has its own Grade II listing.
Perth-hir House, Rockfield, Monmouthshire, Wales, was a major residence of the Herbert family. It stood at a bend of the River Monnow, to the north-west of the village. At its height in the 16th century, the mansion, entered by two drawbridges over a moat, comprised a great hall and a number of secondary structures. Subsequently in the ownership of the Powells, and then the Lorimers, the house became a centre of Catholic recusancy following the English Reformation. By the 19th century, the house had declined to the status of a farmhouse and it was largely demolished in around 1830. Its ruins, and the site which contains considerable remnants of a Tudor garden, are a scheduled monument.
