Lock Cottage is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 28 July 2005. House.

Lock Cottage

WRENN ID
standing-landing-spindle
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
28 July 2005
Type
House
Address
Lock Cottage, Cefn Brynich, Llanfrynach, Powys
OS grid reference
SO 077 273
Coordinates
51.93668, -3.34386
Source
Cadw listing

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

Description

Lock Cottage is a house that was originally a pair of cottages. It is constructed from rubble stone and features an imitation slate roof with a close eave and small stone stacks at each end. The building has two storeys and a three-window range of small-paned hopper type windows. The upper windows, located under the eaves, have 6 panes each, while the lower windows have cambered heads with stone voussoirs and consist of 9 panes. These are alternated with two doors that also have similar cambered heads. The doors are made of board and have stone sills. A 20th-century loft window has been inserted in the south end wall, and there is a 20th-century added lean-to at the rear. The property is not available for inspection.

Local climate

Lock Cottage 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
  • No sale records on file
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  • 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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  4. Barn range at Cefn Brynich Grade II 157 m
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