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Cof Cymru: National Historic Assets of Wales · Wales

Pantyffynnon Signal Box

Ammanford, Carmarthenshire, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
10 August 1994
Community
Ammanford
Unitary authority
Carmarthenshire
Country
Wales
Coordinates
51.77728, -3.99763
Cadw reference
14813

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

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1860 "41. Caermathen." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Situated about 150m S of Pantyfynnon Station and on E side of railway line close to bridge over River Amman. The lines at Pantyffynnon junction merged to N of this signal box, from where railway movements were controlled.

The line from Llanelli to Llandeilo was begun in 1835 by the Llanelli Dock and Railway Co., reaching Pontardulais in 1839 and Pantyffynnon in 1840. The Pantyffynnon signal box is of GWR type 5 with a design dating from 1889-92 and is notable for its design variation with gabled external porch-plus-closet supported on a brick pillar.

Dark brick to locking room and porch with horizontal weatherboarding plus small-frame glazing to operating room. Gabled slate roofs with bargeboards and finials, ventilators under. Overall glazing to track side with horizontally sliding 3 + 2 pane sashes and short grabrails to outer bays. Name-plate under centre windows. Locking-room with 3x4-pane fixed timber windows and door under open-tread timber stair with handrail leading to cantilevered landing to first-floor porch.

A well-preserved example of an interesting variant to a standard-design GWR box, sited on the Heart of Wales line in sight of Pantyfynnon Station.

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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