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Cof Cymru: National Historic Assets of Wales · Wales

Drysgol Platform

St. Harmon, Powys, Wales

A scheduled monument in St. Harmon, Powys, recorded as Platform house (Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Drysgol Platform, St. Harmon, Powys, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Scheduled monument
Site type
Platform house
Period
Medieval
Date of designation
22 December 1999
Community
St. Harmon
Unitary authority
Powys
Country
Wales
Coordinates (centre of the scheduled area)
52.35301, -3.54152
SAM number
RD176
Cadw record number
1617

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1637 · Particular description of Wales. Cambria seu Wallia (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 179 Rhyader (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 14. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Monument.

The monument consists of a platform house, a levelled area of ground on which a house is built. The Dyrysgol platform is an example of an unusually long earthen platform built in to a south facing slope overlooking the Marcheini Fawr river. The platform measures over 35m in length and is defined by earthen banks which extend along both sides and across the lower end. There is evidence suggesting that there are structural remains, possibly a house, below the present surface. The platform conforms to a type rare in Wales.

The monument is of national importance for its potential to enhance our knowledge of settlement organisation. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques. a platform house may be part of a larger cluster of monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive. It is a rectangle and measures 25m x 50m.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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