Ty'n-y-ffynnon is a Grade II listed building in the Caerphilly local planning authority area, Wales. First listed on 16 September 1999. Farmhouse.
Ty'n-y-ffynnon
- WRENN ID
- strange-truss-crimson
- Grade
- II
- Local Planning Authority
- Caerphilly
- Constituency
- Caerphilly MP: Chris Evans (Lab)
- Country
- Wales
- Date first listed
- 16 September 1999
- Type
- Farmhouse
- Address
- Ty'n-y-ffynnon, Mynydd Grug, Ynysddu
- OS grid reference
- ST 206 908
- Coordinates
- 51.61125, -3.14665
- Source
- Cadw listing
Description
Ty'n-y-ffynnon is a mountain farmhouse constructed from limewashed stone, topped with a stone-tiled roof that features three half-dormers at the front. The building has a corniced brick ridge and end stacks. Most of the casement windows have small panes and stone sills. The ground floor has a two-window range and a boarded door located at the end on the right. At the rear, there is a catslide roof over an outshut, which leads to a curtailed roof on the two-storey end bay to the right; this bay includes a 16-pane casement window on the first floor and a boarded door below. At the front, there is a rectangular rubble wall with a wicket gate that creates a small courtyard. To the right, there is a small barn bay that is stepped down, featuring a doorway and a ventilation slit.
Local climate
Ty'n-y-ffynnon sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 77% of listed buildings.
It experiences an average of 33 freeze-thaw cycles a year, fewer than 56% of listed buildings. Of these, 13 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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