George IV Arch is a Grade II* listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 11 March 1993. Archway.
George IV Arch
- WRENN ID
- unlit-chimney-sorrel
- Grade
- II*
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 11 March 1993
- Type
- Archway
- Address
- George IV Arch, Salt Island, Holyhead
- OS grid reference
- SH 252 829
- Coordinates
- 53.31421, -4.62474
- Source
- Cadw listing
Description
The George IV Arch is a Grade II* listed Doric structure designed as a gateway, commonly referred to as the Triumphal Arch. It showcases the architect's interest in Greek architecture, as seen in his many drawings inspired by the Propylea of the Athenian Acropolis, although the unfluted columns do not represent true Greek Doric style. Constructed from Mona marble sourced from Red Wharf quarry, the arch features two pairs of columns positioned between antae, creating a central cobbled carriageway with narrower footways on either side. Additional Classical details include a Doric cornice and frieze adorned with guttae and mutules. The frieze is interrupted on both sides by inscribed panels, with Welsh inscriptions facing the town and Latin inscriptions facing the pier. Notably, George IV’s visit to Edinburgh the following year coincided with the laying of the foundation stone for the National Monument on Calton Hill, a more ambitious Greek Revival project.
Local climate
George IV Arch sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.
It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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Nearby listed buildings
- Harbour Office
- Customs House
- Admirlaty Pier (including Sea Wall between Salt Island Bridgea and George IV Arch)
- Lighthouse on Admiralty Pier
- South Pier
- Store, Old Boiler Shop & Sawmill buildings at Marine Yard
- Office and Stores Building
- Fitting, Boiler and Smithy Shops
- Lower Churchyard Walls and Gateway
- St Cybi's Church