Wharf House is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 1 April 1974. House.
Wharf House
- WRENN ID
- shifting-hammer-hyssop
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 April 1974
- Type
- House
- Address
- Wharf House, Porthmadog
- OS grid reference
- SH 568 384
- Coordinates
- 52.92414, -4.13019
- Source
- Cadw listing
Description
Wharf House is a 1½-storey house constructed from large slate-stone blocks arranged in regular courses, topped with a slate roof that has a half-hipped design on the right side and features deep projecting eaves. The house has two stone ridge stacks located at the center and left, along with another stack on the rear wing.
To the left of the center, there is a gabled porch that includes a replacement panel door and glazed side panels, beneath an original boarded gable with vertical and arched ribs. The side walls of the porch have small windows with leaded glazing. There is a single window to the left and three windows to the right of the porch, all of which are replacements in earlier openings. The second window to the right of the porch is situated within an earlier wide doorway that has a stone lintel, which has been partially cut into by the window. The right-hand window shows a vertical joint beneath its left-hand jamb, indicating it was also originally a doorway. Two gabled dormers to the right of the porch feature replacement windows.
The right (south) end wall, which was described as slate-hung in a previous survey, is pebble-dashed and has an added balcony supported by two square piers, along with a glazed door and both an inserted and a replacement window. The left (north) gable end has a blocked doorway to the right, with a raised band to the left that likely marks the ridge of a former lean-to. Above this is a replacement window. The rear of the main range has replacement windows on either side of the rear wing, which features a roof covered with bands of fish-scale slates.
Entrances to two modern apartments are located in the rear wing, which has external steps leading to a replacement panel door in its north wall. The east gable end has a two-storey projection that houses a porch, with a replacement window to the left. The attic and south side wall also contain replacement windows. The building has not been inspected.
Local climate
Wharf House 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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