3 Pencei (Cornhill) is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 30 March 1951. Commercial building.
3 Pencei (Cornhill)
- WRENN ID
- gaunt-ashlar-mint
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 30 March 1951
- Type
- Commercial building
- Address
- 3 Pencei (Cornhill), Porthmadog
- OS grid reference
- SH 568 383
- Coordinates
- 52.92314, -4.13059
- Source
- Cadw listing
Description
This is a 4-storey, 4-bay block built of large blocks of slate-stone laid in regular courses, with a slate roof and ridge stacks to the left of center and on the left-hand ridge. The front elevation features unequal, outer gabled bays at numbers 2 and 5. The left-hand bay (number 2) has replacement windows, with larger windows on the lower level, and the entrance is offset to the right, featuring a half-glazed door and side panel that replaced a larger original door. Number 3 has a replacement half-glazed door and overlight on its right side, alongside a 2-pane sash window to its left. While the 2nd-storey window at number 3 is a replacement, the 3rd and 4th storeys retain earlier 2-pane sash windows. Number 4 features a panel door and overlight, with a 16-pane hornless sash window to its left. The 2nd and 3rd storeys have similar windows, and the 4th storey has a shorter 12-pane sash window. Number 5, positioned under the right-hand gable, has a half-glazed panel door accompanied by a 2-light small-pane window to its left. The 2nd, 3rd, and 4th storeys all incorporate 18-pane sash windows where previous loading doors were located, with a pulley block over the upper-storey window.
The right end wall (number 5) retains a faint outline of a former 1-storey gabled building, along with replacement 2-light windows on the 2nd, 3rd, and 4th storeys. The 2-window left end (number 2) also has replacement windows and a lean-to structure with a blocked window facing the front. A garage is located at the left end, featuring double doors set under a steel lintel. The building belongs to a group known as 2-5 Pencei (Cornhill).
Local climate
3 Pencei (Cornhill) 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
- Sale history — 3 transactions since 1995
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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