| Pentwyn, Llanllowel | |
| Type: | Farmhouse |
| Map Relief: | yes |
| Coordinates: | 51.6873°N -2.8812°W |
| Location: | Llanllowell, Monmouthshire |
| Built: | c.1560–1570 |
| Architecture: | Vernacular |
| Governing Body: | Privately owned |
| Designation1: | Grade II* listed building |
| Designation1 Offname: | Pentwyn |
| Designation1 Date: | 18 November 1980 |
| Designation1 Number: | 2717 |
| Designation2: | Grade II listed building |
| Designation2 Offname: | Barn at Pentwyn |
| Designation2 Date: | 22 June 2000 |
| Designation2 Number: | 23499 |
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.
Sir Cyril Fox and Lord Raglan, in their three-volume study Monmouthshire Houses, date the building to 1560–1570. They describe it as originally constructed to an L-plan. The house was rebuilt in the 18th century. On a tithe map of 1837, Pentwyn is recorded as being in the ownership of a Thomas James, and being farmed with 161 acres by a Mattias Goff. The 1895 Kelly's Directory for Monmouthshire records an Evans Francis as being resident.[1]
The architectural historian John Newman describes Pentwyn as "conspicuously sited on a hillock overlooking the River Usk. The farmhouse is of 2 storeys and the entrance front dates from the Georgian remodelling. Fox and Raglan, and Newman, note the early use of stone mullioned windows, Fox and Raglan assigning the farmhouse to their "exotic" grouping of Monmouthshire houses on this basis. Pentwyn has a Grade II* listing, its listing describing it as "a Georgian reconstruction of an important 16th century house", while the 18th century barn has a Grade II listing.
. John Newman (architectural historian). The Buildings of Wales. Gwent/Monmouthshire. 2000. Penguin. London. 0-14-071053-1.