27&28 Hereford Street is a Grade II* listed building in the Powys local planning authority area, Wales. First listed on 30 December 1993. Former radar training school.

27&28 Hereford Street

WRENN ID
high-rotunda-dale
Grade
II*
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
30 December 1993
Type
Former radar training school
Address
27&28 Hereford Street, Presteigne
OS grid reference
SO 316 642
Coordinates
52.27184, -3.00367
Source
Cadw listing

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

Description

27 and 28 Hereford Street is a two-storey building with a rubble front and a slate roof, featuring a square chimney stack over No 27. The part-roughcast gable end of the 16th-century wing forms the front of No 28. Both properties have two-light small-pane casements on the first floor and modern cross-frame windows below. The ground floor includes cambered voussoirs above two half-glazed doors. The main entrance is now located on the roughcast right end, accessed beyond a boarded door that closes off side access. There is a modern rear extension.

This late-medieval building retains three cruck trusses, although they are incomplete. The truss between Nos 26 and 27 has been cut at the rear, the right-hand truss has been altered by the insertion of the chimney, and the left end truss has been boxed in. The right-hand (eastern) truss originally contained a partition between the hall and solar, and smoke-blackening on the timbers indicates that there was once a central open hall, which was floored over by the end of the 16th century, likely after the addition of the storeyed wing. There are modern stairs present.

Backing onto the main chimney is a later fireplace set at a skewed angle, adjacent to a much-altered timber-framed partition that divides the parlour and rear service room in No 28. Of exceptional interest is a fragmentary wall painting from around 1600, located on a panel of wattle and daub within this partition. The painting, known as 'antique-work' and typical of the period from 1550 to 1620, depicts two nude figures standing beside a central urn with a fluted base against a black background. Given its date, it may be contemporary with the addition of the wing, and the rarity of this style is highlighted by the fact that only one other Welsh example is known to survive. There is also said to be a similar panel beneath plaster on the rear side of this partition, possibly relocated.

Local climate

27&28 Hereford Street receives an average of 860 mm of rain a year. This makes it wetter than 61% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 56% of listed buildings.

It experiences an average of 47 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 26 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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