Customs House is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 11 March 1993. A Georgian Customs house.
Customs House
- WRENN ID
- lone-arch-kestrel
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 11 March 1993
- Type
- Customs house
- Address
- Customs House, Salt Island, Holyhead
- OS grid reference
- SH 252 829
- Coordinates
- 53.31466, -4.62525
- Source
- Cadw listing
Description
The Customs House is a Georgian building, similar in design to the Harbour Office. It is two storeys high and constructed from local Mona marble stone, featuring a hipped slate roof and stone chimneys topped with modern caps. The front has three bays framed by prominent pilasters, a sill band, a plinth, and a shaped cornice with a blocking course above. The windows are horned small-pane sash types, which have been replaced with modern versions, and the central entrance is now blocked with a window inserted. The right-hand end has pebbledash, and there is an adjoining rubble wall that connects the Customs House with the Harbour Office. At the rear, there is a brick chimney and lean-tos, along with a large modern flat-roof extension to the left that features horned small-pane sash windows. This extension projects at the left end and includes the current main entrance. Detached replacement customs offices have been built at the rear. The interior has been altered due to office conversion and renovation.
Local climate
Customs House 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
- George IV Arch
- Admirlaty Pier (including Sea Wall between Salt Island Bridgea and George IV Arch)
- Lighthouse on Admiralty Pier
- Store, Old Boiler Shop & Sawmill buildings at Marine Yard
- South Pier
- Office and Stores Building
- Fitting, Boiler and Smithy Shops
- Lower Churchyard Walls and Gateway
- St Cybi's Church