Ty'n-y-porth is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 19 October 1971. House. 1 related planning application.
Ty'n-y-porth
- WRENN ID
- tangled-tallow-larch
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 October 1971
- Type
- House
- Address
- Ty'n-y-porth, Llangybi, Pwllheli, Llanystumdwy, LL53 6LZ
- OS grid reference
- SH 428 411
- Coordinates
- 52.94458, -4.34016
- Source
- Cadw listing
Description
Ty'n-y-porth is a late 18th century building, likely constructed around 1750, and renovated in 1988. It is built of rubble stonework and is whitewashed, with a slate roof. The original structure is one storey and attic, with three bays. A boarded entrance door is centrally located and has an engraved slate panel above, indicating the building’s construction date and a 1988 refurbishment. Small paned casement windows are present in each bay, and the roof features three squat gabled dormer windows with matching casement windows. Tall gable stacks are a prominent feature.
At the rear, the building has a single-storey extension projecting at a right angle to the west. A further single-storey extension to the west includes a garage with a boarded door and a small circular light in the gable.
Internally, the original partitions have been removed, including those separating the building from the rear wing, leaving five exposed cross beams. A large stone stack is located at the west end, and a smaller fireplace is at the east end. The original slate flagged floor has been covered with boarding. A modern metal staircase provides access to the upper floor.
Local climate
Ty'n-y-porth sits in one of the wettest parts of the UK, with an average of 1,610 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 11 freeze-thaw cycles a year, fewer than 89% of listed buildings. Of these, 4 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.
- Sale history — 4 transactions since 1998
- 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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