Union Inn is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 30 March 1951. Public house.

Union Inn

WRENN ID
ghost-merlon-furze
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
30 March 1951
Type
Public house
Address
Union Inn, 7 Sgwar Y Farchnad (Market Square), Tremadog, Porthmadog
OS grid reference
SH 562 401
Coordinates
52.9395, -4.14117
Source
Cadw listing

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

Description

The Union Inn is a 2-storey, double-fronted public house built from roughly coursed and squared quarried stone. It features large lintels, a slate roof with slated projecting eaves, and stone stacks at each end. The central entrance has fielded-panel doors topped by a thin overlight. The windows are 4-pane horned sashes, with the upper storey windows being shorter than those on the lower storey.

Local climate

Union Inn 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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  • Detailed attributes — period, style, materials, features
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  • 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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Nearby listed buildings

  1. 9 Sgwar y Farchnad (Market Square) Grade II 8 m
  2. 5 Market Square Grade II 11 m
  3. 3 Sgwar y Farchnad (Market Square) Grade II 17 m
  4. 11 Sgwar y Farchnad (Market Square) Grade II 17 m
  5. Tremadog War Memorial Institute Grade II 22 m
  6. Steps and lamp post at centre of Market Square Grade II 24 m
  7. Spar Shop and house Grade II 28 m
  8. 14 Sgwar y Farchnad (High Street) Grade II 31 m
  9. 1 Hoel y Llan (Church Street) Grade II 34 m
  10. 16 Sgwar y Farchnad (High Street) Grade II 35 m