Locomotive Shed is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 4 November 1999. Shed.

Locomotive Shed

WRENN ID
calm-panel-saffron
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
4 November 1999
Type
Shed
Address
Locomotive Shed, Gilfach Ddu, Caernarfon, Llanddeiniolen
OS grid reference
SH 584 606
Coordinates
53.12388, -4.11734
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

This is a rectangular-plan, high single-storey locomotive shed. It is constructed from dressed slate-stone slabs and features a slate roof with a long ventilated gabled louvre at the ridge. The south wall has two tall four-paned windows, each with slate cills and lintels. The east gable end has tall boarded double doors designed for locomotives. The interior was not accessible at the time of the survey.

Local climate

Locomotive Shed sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 40 freeze-thaw cycles a year, more than 78% of listed buildings. Of these, 22 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
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  • 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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  2. Incline and Drumhouses Grade II 146 m
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