Former Communal Lavatory is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 16 December 1974. Former communal lavatory.

Former Communal Lavatory

WRENN ID
tattered-column-oak
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
16 December 1974
Type
Former communal lavatory
Address
Former Communal Lavatory, Porth Penrhyn, Llandygai
OS grid reference
SH 591 728
Coordinates
53.23394, -4.11167
Source
Cadw listing

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

Description

This former communal lavatory is a single-storey building with a circular plan. It is constructed from tooled and dressed rubblestone blocks, featuring reddish brown brick dressings around the windows and door. The roof is conical and covered with graded slate, topped by a pyramidal-shaped ventilator with a ball finial. On the north side, there is a segmental-headed doorway with a recessed plank door, and six port-hole windows are positioned below the eaves. Access to the building was not possible at the time of the survey.

Local climate

Former Communal Lavatory 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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  • 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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