Circular latrine at Blaen-nant-yr-hebog is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 24 October 1989. Latrine.

Circular latrine at Blaen-nant-yr-hebog

WRENN ID
stony-quoin-mist
Grade
II
Local Planning Authority
Neath Port Talbot
Constituency
Neath and Swansea East MP: Carolyn Harris (Lab)
Country
Wales
Date first listed
24 October 1989
Type
Latrine
Address
Circular latrine at Blaen-nant-yr-hebog, Glynneath
OS grid reference
SN 827 046
Coordinates
51.72787, -3.69968
Source
Cadw listing

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

Description

The circular latrine at Blaen-nant-yr-hebog is an early 19th-century structure designed in the style of circular pigsties. It features a corbelled stone slab roof. The internal area has an ovoid shape and includes a stone slab that once supported the seat. Drainage is facilitated by a narrow stream that flows through two openings. At the time of the last survey in September 2003, the site was impenetrable, and in July 1989, the doorway lintel was broken and the corbelled roof was in a deteriorating condition.

Local climate

Circular latrine at Blaen-nant-yr-hebog sits in one of the wettest parts of the UK, with an average of 1,340 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 53% of listed buildings. Of these, 15 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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