Water Tower at Penylan Reservoir is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 12 October 2001. Water tower.

Water Tower at Penylan Reservoir

WRENN ID
calm-span-swallow
Grade
II
Local Planning Authority
Cardiff
Constituency
Cardiff East MP: Jo Stevens (Lab)
Country
Wales
Date first listed
12 October 2001
Type
Water tower
Address
Water Tower at Penylan Reservoir, 80 Cyncoed Road
OS grid reference
ST 194 791
Coordinates
51.50594, -3.1623
Source
Cadw listing

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

Description

The Water Tower at Penylan Reservoir is a square, two-stage structure built of red brick. It features a battered base topped by a freestone band, with clasping buttresses and a freestone embattled parapet. On the front side facing Cyncoed Road and the rear, there are blocked round-headed doorways with impost bands. The rear also has two superimposed round-headed windows in the tall lower stage, although the lower window is blocked. The side walls are adorned with tall, narrow blind arches in the lower stage. In the upper stage, the buttresses are corbelled out, and each face of the tower has four corbelled pilasters.

Local climate

Water Tower at Penylan Reservoir sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 22 freeze-thaw cycles a year, fewer than 77% of listed buildings. Of these, 8 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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