Hen Felin is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 20 April 1998. Mill.
Hen Felin
- WRENN ID
- watchful-rafter-magpie
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 20 April 1998
- Type
- Mill
- Address
- Hen Felin, Pwll-Fanogl, Llanfair Pwllgwyngyll
- OS grid reference
- SH 530 709
- Coordinates
- 53.21543, -4.20278
- Source
- Cadw listing
Description
Hen Felin is a three-storey, four-bay mill building constructed of dressed limestone, topped with a modern slate roof. The building features square-headed windows with voussoir lintels that contain modern side-hung casements. The entrance is now located in the upper storey on the west side. To the west of the building, there is a dam, much of which was rebuilt in the early part of the 20th century after it collapsed. The wheel pit has been filled in, and there are no remaining launders that once connected the pond to the mill.
The mill has been converted into a dwelling, which includes an inserted floor and sawn timber king post trusses. No mill machinery remains.
Local climate
Hen Felin 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 93% of listed buildings.
It experiences an average of 23 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 11 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
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.
this building 1 similar nearby listed buildings