Neptune is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 14 January 1971. Commercial building.
Neptune
- WRENN ID
- over-vestry-crag
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 14 January 1971
- Type
- Commercial building
- Address
- Neptune, Portmeirion, Penrhyndeudraeth
- OS grid reference
- SH 589 371
- Coordinates
- 52.9133, -4.09948
- Source
- Cadw listing
Description
Neptune is a two-storey rectangular building designed in a sub-medieval vernacular style. The exterior is rendered, featuring slightly oversailing upper floors supported by corbels on the rear (east) elevation. The slate roof has a tall rendered chimney on the right (south) gable end.
The front (west) elevation showcases a central round-arched shop entrance with recessed part-glazed doors, which have small-pane upper sections. To the right of the entrance is a small square light, followed by a large two-part shop window. This window includes a canted, flat-roofed bay window on the left, with a flush continuation to the right, both featuring multi-pane glazing. On the left of the entrance, there is a second canted wooden bay with six-pane sections, flanked by two-part twelve-pane windows on either side. The upper storey has three two-light leaded windows in the centre and two single-light windows to the right, along with a further slit-like window on the far left.
The rear elevation features a recessed arch at the centre with a twelve-pane fixed window. To the right of this arch are three small six-pane windows, and to the left is a tall multi-pane window with an additional small square light beyond. An external wooden stair ascends from right to left from the central arched window, leading to a part-boarded upper entrance, which is flanked by leaded windows similar to those on the lower floor, with another similar window to the right. Various applied plaques are present on the exterior.
Local climate
Neptune sits in one of the wettest parts of the UK, with an average of 1,490 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% of listed buildings. Of these, 15 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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