Ty Mawr is a Grade II listed building in the Denbighshire local planning authority area, Wales. First listed on 1 February 1995. House.
Ty Mawr
- WRENN ID
- eastward-newel-fen
- Grade
- II
- Local Planning Authority
- Denbighshire
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 February 1995
- Type
- House
- Address
- Ty Mawr, Four Crosses, Corwen, LL21 0NN
- OS grid reference
- SJ 035 431
- Coordinates
- 52.97676, -3.43779
- Source
- Cadw listing
Description
Ty Mawr is a 17th century building featuring render over rubble, with the earliest part of the range located to the right and internally cruck framed. It has a slate roof with end wall and axial stacks. The structure is one and a half storeys high, consisting of two dwellings that each have paired dormer windows aligned with the doorway and window below. There is an additional window that may have been the original doorway, which backs onto the axial stack on what is now the dividing wall, but which would have previously been the outer gable of the original house. All windows have been renewed and enlarged. To the right of the original house, there is a range of later outbuildings.
Inside, the earliest part of the building features a doorway that is likely secondary and dates from when a staircase was added, providing access to a lobby at the foot of the stairs and a small room to its right. The main room is to the left and includes a massive bressumer over the fireplace recess, a spine beam, and heavy joists in the ceiling, all of which are chamfered with decorative stops. A heavy post and panel partition separates the room from the stairs, and cruck trusses are partially visible behind this partition and in the fireplace bay.
Local climate
Ty Mawr sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 84% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 59% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 30 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
- 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
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