Ty Llys is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. Farmhouse.

Ty Llys

WRENN ID
plain-loggia-evening
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
21 October 1998
Type
Farmhouse
Address
Ty Llys, Tretower, Llanfihangel Cwmdu with Bwlch and Cathedine, Powys
OS grid reference
SO 185 212
Coordinates
51.88407, -3.18444
Source
Cadw listing

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

Description

Ty Llys is a two-storey farmhouse built of rubble stone, featuring stone lintels and sills, topped with a slate roof and stone stacks on the left, right, and right of the center. The main house, which has three windows, occupies the center and left side of the front, while the service end is located on the right. The main house includes casement windows with iron-frame glazing in hexagonal and lozenge patterns. The upper storey has two-light windows, with the central window positioned beneath a gablet. The lower storey features larger cross windows to the left and right of the porch.

The porch is timber-framed, has a pitched roof with a boarded gable, and contains a half-lit panelled door flanked by glazed panels that extend around the side walls. There is also a half-lit boarded front door leading into the house. To the left of the porch, a large stone lintel is situated above a cellar window. The service end on the right is a later addition, featuring a small attic cross window inserted into an original opening beneath a gablet, two two-light casements with iron-frame glazing in the upper storey, and two-light casements in the lower storey that have been inserted into original openings.

An attached rubble-stone extension on the right gable end is lower than the main structure and includes a boarded loft door and a wide inserted door below. A lean-to has been added at the rear, and to the right of this, there is a ground-floor casement window that has been inserted into an original opening with a stone lintel. In the upper storey, a central fixed light features patterned iron-frame glazing. The interior was not accessible during the survey in September 1997.

Local climate

Ty Llys sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.

It experiences an average of 54 freeze-thaw cycles a year, more than 94% 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

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. Church of St John the Evangelist Grade II 46 m
  2. Wall N of Tretower Court Grade II 60 m
  3. Church Hall Grade II 62 m
  4. Wall N of Tretower Court Barn Grade II 66 m
  5. Tretower Court Grade I 88 m
  6. Castle Cottage Grade II 89 m
  7. Tretower Court Barn Grade II* 90 m
  8. Vine Tree Cottage Grade II 104 m
  9. 2 Vine Tree Cottages Grade II 104 m
  10. Tretower Castle Grade I 120 m