Garden house at Min y Twr is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 28 May 2003. Garden house.

Garden house at Min y Twr

WRENN ID
sombre-lancet-juniper
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
28 May 2003
Type
Garden house
Address
Garden house at Min y Twr, Glyn Garth, Cwm Cadnant
OS grid reference
SH 566 732
Coordinates
53.2372, -4.14919
Source
Cadw listing

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

Description

The garden house at Min y Twr is a single-storey structure built from local rubble masonry, featuring roughly coursed stone and large stones as quoins. It has a flat roof made of large slate sheets, set behind a shallow parapet that is slightly offset above coved pseudo machicolations. The building has an irregular plan, with the entrance located in a rectangular block to the northeast, a single window to the left, and another window in an advanced rectangular bay to the right. At the southwest end, the building curves to create a circular viewing room with windows that overlook the Menai Straits.

The doorway is round-headed, and the windows are narrow pointed lights with slate sills. The walls are rendered with ashlar scoring, though they are now in a somewhat ruinous state. Inside, there is a tiled floor with a single step leading up to the circular viewing room. A small rectangular hearth is located within a fireplace at the northeast end, flanked by tiled alcoves.

Local climate

Garden house at Min y Twr 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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Nearby listed buildings

  1. Milestone below Min y Twr Grade II 74 m
  2. Tower and walls at Min y Twr Grade II 76 m
  3. Craig-y-Don Grade II 108 m
  4. Coachhouse at Craig-y-Don Grade II 146 m
  5. Boat-house at Craig-y-Don Grade II 168 m
  6. Lodge at Craig-y-Don Grade II 235 m
  7. Plas Rhianfa Grade II* 365 m
  8. Gate-house, with gate-piers and retaining wall to courtyard, Plas Rhianfa Grade II 410 m
  9. Summerhouse and dovecote in garden of Plas Rhianfa Grade II 424 m
  10. Nant Cottage Grade II 673 m