Madyn Dysw is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 25 October 1951. Terraced dwelling. 1 related planning application.

Madyn Dysw

WRENN ID
watchful-spandrel-ivory
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
25 October 1951
Type
Terraced dwelling
Address
Madyn Dysw, Amlwch
OS grid reference
SH 446 928
Coordinates
53.4091, -4.33897
Source
Cadw listing

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

Description

Madyn Dysw is a house with its earliest part incorporated in the north-south range, which serves as the rear wing of an early 19th century front block. This front block is set at right angles to the rear and is accompanied by a former stable range, creating a roughly L-shaped layout that includes a single-storey block in the southeast angle, likely a former boiling house. The exterior features roughcast rendered elevations, probably over rubble masonry, and a modern slate roof with stone coping, along with rendered gable and axial stacks that have capping.

The early 19th century front block is three storeys high with two windows, and the entrance is through a lean-to porch along the east wall. The principal elevation faces north, with the ground and first floors featuring two 16-pane, hornless sash windows. The second floor has three 12-pane windows directly under the eaves, with the central window being blind or blocked. There is also a single second-floor window on the west wall and an intermediate window between the first and second floors on the east wall, both offset towards the rear (south) end.

At right angles to the rear of this block is a two-storey range with four windows, which has round-headed doorways offset to the right (north) end and a single gable stack to the south. One of the doorways is a 16th-century entrance, previously featuring a date plaque above it.

The former stables-coachhouse is a five-window range with a doorway offset to the right (west) and a garage doorway to the left. The first floor has four windows in flat-roofed half dormers, and there is a small window under the eaves between the third and fourth windows on the right end. This range includes a stack at the right (west) gable and an axial stack to the right of the garage doorway.

The single-storey block in the angle of the two ranges has a lean-to roof with a tall rendered stack along the north wall. There is a doorway in a flat-roofed addition to the east, and small windows are present in the north and east elevations. The rear elevations of both ranges have modern PVCu windows and doors.

The interior has undergone extensive modernisation and re-planning since the building was divided into three separate dwellings.

Local climate

Madyn Dysw sits in a wetter-than-average part of the UK, with an average of 1,040 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 95% of listed buildings.

It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 2 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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
  • Sale history — 4 transactions since 1996
  • 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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