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Cof Cymru: National Historic Assets of Wales · Wales

Gunpowder Magazine

Holyhead, Isle of Anglesey, Wales

The record

Designation
Listed building, Grade II
Broad class
Industrial
Date of designation
25 July 1994
Locality
Breakwater Quarry
Community
Holyhead
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates
53.31787, -4.66007
Cadw reference
14755

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 1883 "Watershed map England, Wales 3." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

To N of road to Breakwater Country Park, approximately 200m W of bridge over road.

Mid C19 gunpowder magazine built to store explosives for Breakwater quarries.

Grey stone, Front (S) has porch with monopitch roof, doorway with steel door, and small window to R. Ends each have three buttresses, small window in L wall; plain rear. Interior has two chambers separated by thick walls; brick vaults.

Included of scarce example of building type, illustrating engineering history of quarry and Great Breakwater.

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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