St John's Mount & Mews Cottage is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 16 December 1976. Terraced house.

St John's Mount & Mews Cottage

WRENN ID
graven-jamb-sorrel
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
16 December 1976
Type
Terraced house
Address
St John's Mount & Mews Cottage, Powys
OS grid reference
SO 042 291
Coordinates
51.95226, -3.3944
Source
Cadw listing

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

Description

St John's Mount and Mews Cottage is a two-storey villa with Gothic features, built in the 19th century. The exterior is finished in pebbledash with a slate hipped roof, featuring a band at the first-floor sill level and a plinth. The northeast entrance elevation consists of three bays, with the centre bay projecting over an open porch. This bay includes a cantilevered four-light bay window supported by corbelling, with buttresses extending to the ground. Beneath the porch is a doorway with a four-centred head leading to the rear, featuring a shallow Gothic fanlight with tracery and a door with Gothic panelling. The centre bay is flanked on the left by a two-light casement window above and a three-light casement below, and on the right by a two-light casement above and a three-light casement below. The southeast elevation has three widely spaced window bays, each projecting forward, with first-floor windows of two lights topped by gables and transomed two-light French casements on the ground floor.

Adjoining the house at its northern end is Mews Cottage, which is of similar date. The forecourts of the house and cottage are separated by a stone stub wall. Mews Cottage is also two storeys, rendered with a slate roof. The first floor features two two-light casement windows set across the eaves with gables, while the ground floor has a two-light and a three-light casement window. The entrance is located in a single-storey, two-window exposed stone wing that is at right angles to the main structure.

Inside, the villa boasts fine interiors in the Gothic style, including Gothic cornices, doors, shutters, arches, and chimney pieces.

Local climate

St John's Mount & Mews Cottage sits in one of the wettest parts of the UK, with an average of 1,170 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 79% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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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  • Radon risk assessment
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