Engine House is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 21 July 2000. Engine house.
Engine House
- WRENN ID
- hallowed-bailey-sunrise
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 21 July 2000
- Type
- Engine house
- Address
- Engine House, Pen-Yr-Orsedd, Caernarfon, Llanllyfni
- OS grid reference
- SH 509 541
- Coordinates
- 53.06352, -4.2255
- Source
- Cadw listing
Description
The Engine House is a Grade II listed building featuring regularly coursed slate slabs, with the upper part of the right gable end rendered. It has a slate roof with a red brick integral end stack on the right gable end. The front wall includes a wide horizontal window on the left and a doorway on the right, with additional windows located at the center of the gable ends. This building is associated with the blondin ropeway system that runs to the north-west.
Inside, it retains a winding drum that is operated by a Bruce Peebles 3-phase motor from 1906, which is connected through reduction gearing. The motor, control mechanism, and liquid controller are all still present.
Local climate
Engine House sits in one of the wettest parts of the UK, with an average of 1,380 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 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 12 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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