Okehampton Castle is a Grade I listed building in the Dartmoor National Park local planning authority area, England. A C11 origins with major early C14 rebuilding/extension Castle.

Okehampton Castle

WRENN ID
former-keep-gorse
Grade
I
Local Planning Authority
Dartmoor National Park
Constituency
Central Devon MP: Sir Mel Stride (Con)
Country
England
Type
Castle
Period
C11 origins with major early C14 rebuilding/extension
Address
Okehampton Castle, Okehampton Hamlets, West Devon
OS grid reference
SX 583 942
Coordinates
50.73053, -4.00861
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Okehampton Castle is a historic castle with its oldest parts dating back to the 11th century, with some evidence of 13th-century structures. It underwent significant rebuilding and expansion in the early 14th century. The castle is constructed from a mix of granite, metamorphic rocks, and shale. The earliest structure is the 11th-century keep, which stands on its motte. Evidence of 13th-century buildings can be found in the main bailey, but most of the remaining structures are from the early 14th-century renovations, which included enlarging the keep. This period also saw the addition of a hall, kitchen range, chapel, priests' accommodation, extensive lodgings, a main gatehouse, and a barbican gatehouse. Minor additions were made in the late 14th and 15th centuries, as well as in the late 17th century. The castle is now in ruins, with varying degrees of survival among the remains, although some external fabric is relatively complete. The motte and keep are located to the southwest, while the bailey buildings extend down the valley to the northeast. Okehampton Castle was first mentioned in the Domesday Book of 1086 as the center of the estates of Baldwin de Brionne, the Sheriff of Devon. In 1173, it passed to the Courtenay family, who held it until 1509. The castle occupies a strategic position at the head of the valley, contributing to its significant landscape value. The extensive remains allow for a reconstruction of the early 14th-century layout, making it one of the more complete castle sites in Devon.

Local climate

Okehampton Castle sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 73% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 65% of listed buildings. Of these, 18 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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