Glynderi is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 August 1998. House.

Glynderi

WRENN ID
hallowed-minaret-sunrise
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 August 1998
Type
House
Address
Glynderi, Tal-Y-Llyn, Llangors, Powys
OS grid reference
SO 107 272
Coordinates
51.93665, -3.29986
Source
Cadw listing

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

Description

Glynderi is a Regency style house featuring a main building constructed of scored rendered brick, topped with a hipped Welsh slate roof and narrow lateral stacks. An attached L-shaped wing is primarily made of painted stone rubble, also with a Welsh slate roof that is slightly hipped towards the garden and has an end stack on the opposite side. The main range consists of three storeys and a cellar, showcasing three 8/8 pane sash windows set in reveals with narrow painted sills on the first floor, along with a small 4 pane light positioned centre right. The upper floor has 3/6 pane sashes, while the ground floor features 8/8 pane sashes on either side of a central gabled porch adorned with decorative barge-boards. The doorway to the house includes a panelled door, panelled reveals, and a bracketed entablature.

The rear elevation facing the garden mirrors the front but has narrower windows, with 8/8 pane sashes on the first floor and a platband above, 3/6 pane attic windows, and ground floor openings that were altered in the 1990s by the addition of a large conservatory, although the cellar windows below have been retained. An earlier lean-to conservatory is attached to the south. The two-storey wing features one 6/6 pane and one 8/8 pane sash window on the first floor, with altered windows under cambered arches below. The garden frontage likely includes an inserted 8/8 pane sash at the first floor level. There is a walled garden to the south.

Inside, the property retains six panelled doors and a Regency basket arch between two ground floor rooms on the right. A staircase with wreathed handrails ascends from the left behind the front. Fireplaces on the upper floors are reputedly still in place.

Local climate

Glynderi sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 78% of listed buildings.

It experiences an average of 57 freeze-thaw cycles a year, more than 96% of listed buildings. Of these, 32 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
  • Sale history — 1 transaction since 1995
  • 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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Nearby listed buildings

  1. Cartshed and granary at Brynderwen Grade II 42 m
  2. Barn at Brynderwen Grade II 60 m
  3. Tal-y-llyn Railway Tunnel Grade II 200 m
  4. Brynllici including barn atttached to left Grade II* 951 m
  5. Former house at Brynllici Grade II 961 m
  6. Group of 2 chest tombs in the churchyard to SW of church of St Michael and All Angels Grade II 1.3 km
  7. Group of two table tombs in the churchyard to S of church of St Michael and All Angels Grade II 1.3 km
  8. Church of St Michael and All Angels Grade II 1.3 km
  9. Pennorth railway bridge Grade II 1.4 km
  10. Ty Canol farmhouse Grade II 1.5 km