Dockmaster's Office is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 24 May 2000. Office.

Dockmaster's Office

WRENN ID
gaunt-stair-hawthorn
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
24 May 2000
Type
Office
Address
Dockmaster's Office, Porth Penrhyn, Bangor, Llandygai
OS grid reference
SH 591 727
Coordinates
53.23269, -4.11123
Source
Cadw listing

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

Description

The Dockmaster's Office is a small single-storey building constructed from tooled granite rubble blocks and topped with a hipped slate roof. The front (east) wall features a wide tripartite horned sash window with a stone lintel and cill positioned roughly in the center, with a doorway located to the left. The right side of the building has a narrower tripartite sash window, also with a stone lintel and cill. The rear wall and the left side are blank, except for a purple brick shaft that indicates the location of an integral stack from a former use. The interior has been altered.

Local climate

Dockmaster's Office sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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Nearby listed buildings

  1. The Cottage Grade II 90 m
  2. Port House Grade II 90 m
  3. Penrhyn Estate Office Grade II 112 m
  4. Hen Swyddfa'r Porthladd (Old Port Office) Grade II 116 m
  5. Former Locomotive Shed Grade II 132 m
  6. Former Communal Lavatory Grade II 142 m
  7. Pont Penrhyn (partly in Bangor community) Grade II 144 m
  8. Parapet/Boundary Walls on Port Lodge approach to Penrhyn Castle Grade II 145 m
  9. Penybryn Bridge, including railings & lamp standards Grade II 156 m
  10. Port Lodge Grade II 162 m