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Cof Cymru: National Historic Assets of Wales · Wales

Summerhouse Folly in the grounds of Maenol

Llanidloes, Powys, Wales

A Grade II listed building in Llanidloes, Powys, designated on 10 April 1989.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Summerhouse Folly in the grounds of Maenol, Llanidloes, 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
Listed building, Grade II
Broad class
Gardens, Parks and Urban Spaces
Date of designation
10 April 1989
Community
Llanidloes
Unitary authority
Powys
Country
Wales
Coordinates
52.44114, -3.54276
Cadw reference
8316

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)
  • 1899 · 164 Llanidloes (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

At the edge of the field immediately to the rear of Maenol. Faces N.

Probably contemporary with the house (1832) as said to have been built by Thomas Evans as a peaceful shelter into which to retreat. It is possible, however that it was in fact built by Major Evans as an icehouse and converted in more recent years to a shelter when it was no longer possible or indeed necesary to obtain large quantities of ice.

Square rubble structure with the domed corbelled roof. Full height round arched entrance with shell lined reveal and underside of arch. Similar shell grotto type applied decoration is used on rear wall including inset pieces of quartz. 1 small window to each side. Stone floor.

Included for group value with Maenol.

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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