The Betting Stand (aka Rotten Tower) is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 22 February 1993. Tower. 1 related planning application.

The Betting Stand (aka Rotten Tower)

WRENN ID
floating-rubble-stoat
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
22 February 1993
Type
Tower
Address
The Betting Stand (aka Rotten Tower), Penrhos Coastal Park, Holyhead
OS grid reference
SH 272 809
Coordinates
53.29748, -4.59428
Source
Cadw listing

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

Description

The Betting Stand, also known as Rotten Tower, is a 19th-century structure designed in a picturesque castellated style. It is built from rubble and features voussoirs and a projecting crenellated parapet that steps up to the corner next to the stairs. The stairs are a later addition, suggesting that the Betting Stand was converted from an earlier folly tower. A high cambered arch on the east side opens into seating at the base of the tower, which is covered by a viewing platform above. This platform is accessed by an external stone staircase with a modern handrail. There is also a narrower arched opening leading into a small storage area beneath the stairs.

Local climate

The Betting Stand (aka Rotten Tower) 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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 1 application
  • 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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