Ancient Monuments

History on the Ground

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Caerau Castle Mound

A Scheduled Monument in Treflys, Powys

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Latitude: 52.139 / 52°8'20"N

Longitude: -3.575 / 3°34'29"W

OS Eastings: 292310

OS Northings: 250141

OS Grid: SN923501

Mapcode National: GBR YF.79WD

Mapcode Global: VH5DF.ZHFK

Entry Name: Caerau Castle Mound

Scheduled Date:

Source: Cadw

Source ID: 784

Cadw Legacy ID: BR130

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Powys

Community: Treflys

Traditional County: Brecknockshire


The monument comprises the remains of a motte and ditch, dating to the medieval period (c. 1066 -1540 AD). The motte is 23m in diameter at the base and 4.5m high with a level summit measuring 6.5m across. A ditch is visible on the NW side, and a pond on the NE side appears to encompass the ditch. The motte is located on the SW side of Caerau Roman fort (BR148), and was built over the top of the defences.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive practices. The monument is well-preserved and an important relic of the medieval landscape. It retains significant archaeological potential, with a strong probability of the presence of both structural evidence and intact associated deposits.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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