H.W.Parker, Chemist is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 30 September 1985. Shop.

H.W.Parker, Chemist

WRENN ID
last-sandstone-starling
Grade
II
Local Planning Authority
Powys
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
30 September 1985
Type
Shop
Address
H.W.Parker, Chemist, 6 High Street, Knighton, LD7 1AT
OS grid reference
SO 285 723
Coordinates
52.34441, -3.05053
Source
Cadw listing

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

Description

H.W. Parker, Chemist is a 19th-century, three-storey building with a two-window front made of roughcast and brick, which likely incorporates elements from an earlier 17th-century structure. The building features a slate roof, brick stacks, wide boxed eaves, and plain bargeboards on the right gable end. It has three-light sash windows with timber architraves and a three-bay shop front supported by fluted brackets beneath the fascia. There is a modern window on the front of the gable end, with corrugated iron and weather-boarding extending to the right. A narrow lane to the right, accessed through boarded gates, leads to the side entrance of the house. The roof pitch is divided down the centre at the rear and is higher on the right side, with a brick stack located at the base of the pitch and a gable on the right.

Inside, the building retains exposed timber beams throughout. A four-foot thick cross wall may indicate that it was formerly divided into two properties and had a connection to No. 7. The roof, likely constructed in the 17th century, is made of larch and features a heavy ridge beam, through purlins, and supporting struts. Some timbers, including the ridge, have been replaced in the lower left part of the roof.

Local climate

H.W.Parker, Chemist 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 greater than that of 51% of listed buildings.

It experiences an average of 52 freeze-thaw cycles a year, more than 93% 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.

More on this building

Sign in or create a free account to unlock:

  • No EPC on record for this property
  • Sale history — 1 transaction since 1995
  • No related consent applications matched
  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
Create free account

Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

Nearby listed buildings

  1. Walkmill Antiques Grade II 8 m
  2. The Old Corner Grade II 17 m
  3. B&S Catalogue Surplus Grade II 22 m
  4. Francis Grade II 24 m
  5. Brown's Bakers Grade II 25 m
  6. Narrows Pottery Shop Grade II 28 m
  7. R.K. Bright Grade II 33 m
  8. Islwyn Watkins Antiques including premises of W.Machin, Butcher, West Street Grade II 34 m
  9. Narrows Grill Grade II 37 m
  10. Molly's Cottage Grade II 43 m