Piercefield House is a largely ruined neo-classical country house near St Arvans, Monmouthshire, Wales, about 1.5 miles (2.4 km) north of the centre of Chepstow. The central block of the house was designed in the very late 18th century, by, or to the designs of, Sir John Soane. It is flanked by two pavilions, of slightly later date, by Joseph Bonomi the Elder. The house sits within Piercefield Park, a Grade I listed historic landscape, that was created in the 18th century as a notable Picturesque estate.

Chepstow is a town and community in Monmouthshire, Wales, adjoining the border with Gloucestershire, England. It is located on the tidal River Wye, about 2 miles (3 km) above its confluence with the River Severn, and adjoining the western end of the Severn Bridge. It is the easternmost settlement in Wales, situated 16 miles (26 km) east of Newport, 28 miles (45 km) east-northeast of Cardiff, 18 miles (29 km) northwest of Bristol and 110 miles (180 km) west of London.