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Howe Mill Enclosure

Also known as, or recorded in historical documents as;
How Mill; St Mary's Castle

In the community of Llanfair.
In the historic county of Glamorgan.
Modern authority of Vale of Glamorgan.
Preserved county of South Glamorgan.

OS Map Grid Reference: ST00497213
Latitude 51.43943° Longitude -3.43305°

Howe Mill Enclosure has been described as a probable Timber Castle.

There are earthwork remains.


A greatly ploughed-down, roughly D-shaped enclosure, c.30m N-S by 50-60m, resting on natural scarps above a stream to the N, defined elsewhere by a single spread bank. Sometimes identified as a castle enclosure. (Coflein)

Howe Mill enclosure, D-shaped, and classed as a medieval castle-ringwork by RCAHMW (1976c, 18 - one of larger type but with little defensice advantage in site and ramparts which seem of no great strength), has been almost levelled by ploughing; at edge of steep slopes dropping to River Thaw. OS fieldworkers in 1968 felt is was more likely to be Iron Age (OS card ST 07 SW) Edith Evans, GGAT 73 Early-Medieval Ecclesiastical Sites Project, 2003-04 (Yr4) Site described as a Medieval ringwork castle (Wiggins and Evans 2005). (Glamorgan-Gwent Archaeological Trust HER)

Much mutilated earthwork and difficult to be precise about. Presumed to be the caput of the medieval fee of Llandough, held from the early C12 by the Walsh family. If so then precursor to Llandough Castle, which has no early medieval fabric.
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This record last updated before 1 February 2016