Cabalva House is a Grade II* listed building in the Powys local planning authority area, Wales. First listed on 31 January 1995. Cottage.

Cabalva House

WRENN ID
ancient-cobble-sparrow
Grade
II*
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
31 January 1995
Type
Cottage
Address
Cabalva House, Clyro
OS grid reference
SO 240 467
Coordinates
52.1135, -3.11092
Source
Cadw listing

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

Description

Cabalva House is a small country house, dating in part to the late medieval period, with substantial additions and alterations from the 19th century. It comprises three principal blocks arranged in a complex plan. The house is built with rubble walls, rendered with cement, and has slate roofs and red brick chimney stacks. It is two storeys high with an attic.

The north-west front displays several phases of development. To the extreme right is a two-storey addition of the 19th century, featuring wave-moulded bargeboards to a pair of gables. It has 12-pane sash windows, with taller ground-floor windows. A central porch features a round-arched entrance and a fine doorway with a reeded surround and fanlight. To the left of the porch is a tall stair window with 15 panes and pointed arched glazing bars, beyond which are a pair of attic dormers with similar bargeboards. A projecting gable contains a 6-pane door and a lean-to. To the north-east stands a two-storey range with origins from the late medieval period, with a stone chimney stack heightened in yellow brick. Externally, the only significant indication of these early origins is a small exposed timber fragment, believed to be part of a cruck truss. The slightly stepped forward upper storey suggests the original building may have been a jettied cruck-framed hall house. A parallel range extends behind this, with a gable facing the front. The left end of this range has been modernised but retains some 19th-century leaded lights. The long garden front is stepped up to either end and gabled, with similar wave-pattern detailing. It has near-flush small-pane sashes, including paired windows to the right and triple windows to the left, all with reeded surrounds; a splayed bay window is located on the ground floor to the left. Gable ends have similar windows, and the south-west gable has a rubble buttress.

The entrance opens into an unusual domical entrance hall with pendentives in the style of Sir John Soane, architect of the Bank of England, and a foliated band at the base. The main rooms are well-detailed in a neo-classical style, featuring marble chimney pieces and six-panel doors with fine doorcases enriched with reeding and bosses. There is a variety of classical cornices. The dining room has two fluted Corinthian columns framing a recess. A broad openwell staircase rises to the left of the hall, with S-shaped tread ends, a scrolled newel, and straight balusters. The first-floor landing has two small internal windows with patterned glazing, lighting a laundry room and another service room. The original medieval origins of the house are found internally at the rear, with broach-stopped ceiling beams on the ground floor and hollow and fillet-stopped beams on the first floor. One bedroom also contains reused dado panelling, likely from elsewhere in the house.

Local climate

Cabalva House receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 54% of listed buildings.

It experiences an average of 52 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 29 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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Nearby listed buildings

  1. Stables at Cabalva House Grade II 98 m
  2. Milestone Grade II 684 m
  3. Barn at Cabalva Farm Grade II 750 m
  4. Cabalva Farm Farmhouse Grade II 802 m
  5. Church of Holy Trinity (Chapel of ease to St Michael and All Angels, Clyro) Grade II* 1.4 km
  6. Cowhouse at Upper Bettws Farm Grade II 1.7 km
  7. Upper Bettws Farmhouse Grade II 1.7 km
  8. Barn at Upper Bettws Farm Grade II 1.8 km
  9. Cartshed and Cidermill at Upper Bettws Farm Grade II 1.8 km
  10. Rookwood Grade II 1.9 km