Arfon Oceaneering is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 3 May 2002. Industrial structure. 1 related planning application.
Arfon Oceaneering
- WRENN ID
- sharp-banister-owl
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 3 May 2002
- Type
- Industrial structure
- Address
- Arfon Oceaneering, Victoria Dock, Caernarfon, LL55 1SR
- OS grid reference
- SH 478 630
- Coordinates
- 53.14293, -4.27584
- Source
- Cadw listing
Description
Arfon Oceaneering is a tall single-storey building constructed from rubble-stone, featuring integral pipes that serve as vents. The roof is renewed slate, and there is a small stack on the north gable end. On the north gable end, which faces the dock, there is a tall wide opening with brick jambs and a steel girder lintel, fitted with late 20th-century glazing and a shop front. The gable also has blocked vent strips surrounded by brick. The right side wall is built above the snecked-stone side wall of the dry dock. The rear gable end includes a large inserted opening beneath blocked vents similar to those on the north side. The roof has six bays and retains queen-post trusses that are strengthened by steel rods.
Local climate
Arfon Oceaneering sits in one of the wettest parts of the UK, with an average of 1,370 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- No sale records on file
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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