Garden Boundary Wall including gated entrance is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. Garden boundary wall.

Garden Boundary Wall including gated entrance

WRENN ID
crumbling-string-ivory
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
Garden boundary wall
Address
Garden Boundary Wall including gated entrance, Glanusk Park, Llangattock, Powys
OS grid reference
SO 194 194
Coordinates
51.86813, -3.17098
Source
Cadw listing

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

Description

The garden boundary wall, which includes a gated entrance, separates the garden and site of the former house from the park on its northern, eastern, and southeastern sides. It features alternating solid and pierced stone panels, separated by square piers, topped with an almost flat coping. The solid panels are made of coursed grey rock-faced stone with limestone dressings, while the open panels are limestone pierced with quatrefoils.

On the eastern side, the ground rises towards the south through a series of terraces leading to the site of the former house. Here, the wall sections are taller and some consist of two rows of panels in a slightly different design; the open panels have pierced ogee trefoiled arches with moulded copings. The square-section piers have recessed trefoiled arches and dentilled pyramidal caps.

At the northern end of the eastern wall, there is a gateway leading into the park, flanked by pairs of octagonal piers with mouldings that include a band of Tudor flowers and pyramidal copings. The iron double gates feature rails and dog rails adorned with fleur de lys finials, as well as end rails with scrolls. The wall concludes at the northwestern end with a pier, adjacent to which is a ha-ha with a rough saddleback coping that curves away to the northwest.

Local climate

Garden Boundary Wall including gated entrance 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.

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