Greenhill is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 17 December 1998. Gentleman's house.

Greenhill

WRENN ID
stark-stronghold-saffron
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
17 December 1998
Type
Gentleman's house
Address
Greenhill, Cross Oak, Talybont-On-Usk, Powys
OS grid reference
SO 106 237
Coordinates
51.90537, -3.29956
Source
Cadw listing

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

Description

Greenhill is a gentleman's house featuring a three-bay main unit and a gabled cross wing. The building is constructed of snecked rock-faced stone, with parts colourwashed and roughcast, and has a Welsh slate roof with overhanging eaves and narrow, long end ridge stacks. It stands two storeys high with an attic. The main facade has a three-window range of 3/3 pane horned sashes, which are adorned with rock-faced voussoirs, keystones, and tooled sills. There are larger tripartite windows on the ground floor flanking a central doorway that features a five-panelled door and a rectangular overlight, all set on a plinth.

The cross wing, which steps forward to the left, has a tripartite window on the ground floor, with alterations above and to the sides, as well as an attic window. The space between the wings is filled by a glazed cast-iron verandah that has curved ribs, slender columns, and decorative canopy work, along with a terrazzo floor.

Inside, the main bay opens into a hallway that leads to a large hall on the left, which features two basket arches supported by grooved columns. The staircase, with a wreathed handrail, rises at the rear. The room to the right includes a fireplace with Adam style decoration and a basket-arched alcove at the rear. The interior retains contemporary fittings, including four-panelled doors and shutters. The property also has a range of cellars, including a pig salting room, as well as a kitchen and dairy at the rear.

Local climate

Greenhill 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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  • Detailed attributes — period, style, materials, features
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