3 Tros yr Afon is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 23 September 1950. House.

3 Tros yr Afon

WRENN ID
sharp-grate-spring
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
23 September 1950
Type
House
Address
3 Tros yr Afon, Beaumaris
OS grid reference
SH 600 758
Coordinates
53.26102, -4.09892
Source
Cadw listing

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

Description

3 Tros yr Afon is a late-Georgian, two-storey, three-bay house featuring a pebble-dashed front and a slate roof with shared roughcast end stacks. The openings are slightly offset to the right. The central entrance consists of a fielded-panel door with a small-pane overlight, set within a shallow, open wooden porch that has latticework sides. The left-hand bay contains French doors, while the right-hand bay features a 12-pane hornless sash window. On the upper storey, there are 16-pane sashes in the outer bays, with the right-hand window being hornless, and a 12-pane sash window in the centre.

At the rear, the house has gabled bays, with the upper storey being slate-hung and a 12-pane hornless sash window located in the upper storey of the left-hand bay. The property has not been inspected.

Local climate

3 Tros yr Afon 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

Sign in or create a free account to unlock:

  • No EPC on record for this property
  • No sale records on file
  • No related consent applications matched
  • 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
Create free account

Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

Nearby listed buildings

  1. 4 Tros yr Afon Grade II 10 m
  2. 2 Tros yr Afon Grade II 12 m
  3. Outbuilding behind 4 Tros yr Afon Grade II 22 m
  4. 1 Tros yr Afon Grade II 22 m
  5. Gate posts and gate at entrance to 3 Tros yr Afon Grade II 28 m
  6. Porth Hir Grade II 114 m
  7. Bryn Canol Grade II 121 m
  8. The Bryn Grade II 123 m
  9. Plas Maelog Grade II 129 m
  10. Bridge over Mill Lane on former drive to Baron Hill Grade II 133 m