Watertower is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 22 February 1993. Water tower.

Watertower

WRENN ID
hollow-quartz-heron
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
22 February 1993
Type
Water tower
Address
Watertower, Penrhos Coastal Park, Holyhead
OS grid reference
SH 271 811
Coordinates
53.29922, -4.59457
Source
Cadw listing

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

Description

This is a four-storey square water tower designed to resemble a church bell tower. It is built from local rubble with red brick voussoirs, featuring a hipped slate roof and overhanging eaves, as well as stepped diagonal buttresses. The tower has a round-headed louvred opening at the top and narrow rectangular lights below. Access to the tower is provided by a round-headed doorway reached by stone steps, with a similar doorway leading to the basement on the right. Originally, there was an iron-railed walkway around the top storey. Attached to the tower are buttressed garden walls that extend north, including a large rustic stone archway that opens into the main transverse path.

Local climate

Watertower sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 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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