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Cof Cymru: National Historic Assets of Wales · Wales

Ty'n-y-ffynnon

Ynysddu, Caerphilly, Wales

A Grade II listed building in Mynydd Grug, Ynysddu, Caerphilly, designated on 16 September 1999.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Ty'n-y-ffynnon, Ynysddu, Caerphilly, 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
Domestic
Date of designation
16 September 1999
Locality
Mynydd Grug
Community
Ynysddu
Unitary authority
Caerphilly
Country
Wales
Coordinates
51.61125, -3.14664
Cadw reference
22321

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 1636 map "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1865 · England and Wales. England No. 6. (David Rumsey Map Collection, Stanford Libraries)
  • 1895 · Sheet 11. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1906 · 249 Newport (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1913 · Sheet 102. Newport. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

High on the S slope of the Sirhowy Valley above Wattsville, reached by the mountain road running below the crest of Mynydd Grug and then down a farm track.

Probably mostly early-mid C19. Appears on Machen Ttithe Map of 1841.

Mountain farmhouse. Of limewashed stone with stone-tiled roof incorporating 3 half-dormers to front and corniced brick ridge and end stacks. Casement windows mostly with small panes and stone sills. 2-window range to ground floor with boarded door end right. To rear a catslide roof over outshut with curtailed roof to 2-storey end bay on right; this has a 16-pane first floor casement window and boarded door below. Attached to front is a rectangular rubble wall with wicket gate creating a small courtyard; attached to right and stepped down is a small barn bay with doorway and ventilation slit.

Listed as an uncommon survival in this area of a small regional mountain farmstead retaining almost all its original exterior fabric and character.

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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