Former Garden Walls and Gate Piers at Approximately 100 Metres South West of Carwythenack Farmhouse

The former garden walls and gate piers located approximately 100 metres southwest of Carwythenack Farmhouse date from the early 18th century and were part of the now-demolished mansion Carwythenack. The garden walls are constructed of slate rubble with dressed granite quoins, while the gate piers are made of red brick in Flemish bond, featuring large granite plinths with cyma moulding and similarly moulded cornices topped with granite ogee-shaped caps that have obelisk finials, both of which are overgrown with ivy.

The walls enclose two sides of a rectangular field that was originally a garden. On the long north side, there is a large recess flanked by doorways. The shorter west side features the pair of large red brick gate piers. A stone rubble retaining wall is present on the south side of the garden due to the lower ground level of the field to the south, while the east side remains open. The demolished mansion was likely situated in the northeast corner of the garden, where the ground is slightly raised.

In the 17th century, Carwythenack was owned by the Chepmans or Chapmans. John Chapman of Wendron sold the estate in 1716 to Peter Hill, a merchant from Falmouth. It is believed that William Hill, Peter's son, constructed the Georgian mansion and the walls. C.S. Gilbert, in his 1820 Survey of Cornwall, described the estate as the residence of William Robinson Hill, noting it as "a handsome square edifice built with reddish stone and a large cupola on the centre of the roof," which had recently been improved with enhanced landscaping. By the end of the 19th century, the house had fallen into disrepair and was demolished, with its materials repurposed to build a new farmhouse at Lower Carwythenack. Carwythenack was previously part of the parish of Constantine before the parish boundaries were altered.