100 Heol Maengwyn is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 19 January 1952. Almshouses.

100 Heol Maengwyn

WRENN ID
other-tin-thistle
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
19 January 1952
Type
Almshouses
Address
100 Heol Maengwyn, Machynlleth, SY20 8EA
OS grid reference
SH 749 008
Coordinates
52.59081, -3.84676
Source
Cadw listing

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

Description

100 Heol Maengwyn is a row of five almshouses built in the mid-19th century. The building features a symmetrical two-storey front made of coursed rubble, topped with a hipped slate roof and wide boarded eaves. There are chimney stacks on the rear roof pitches. The design includes small gables above the first-floor windows at both ends and the center, which flank the advanced and gabled bays of Nos 96 and 100. Most of the gables retain pendants and finials, and all have undulating bargeboards. The windows are small pane, two-light casements with Tudor labels, triangular heads on the small gables, and diamond panes at the apex, extending through the eaves. No 96 features rose pattern bosses beside the windows, while No 94 has a boarded door, with the rest being half-glazed. The rear has four gables, with No 94 being broader, and the chimney stacks here are partially rendered. Nos 94 and 96 still have sliding sash windows, and there is a rubble lean-to on the left.

Local climate

100 Heol Maengwyn sits in one of the wettest parts of the UK, with an average of 1,280 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.

It experiences an average of 38 freeze-thaw cycles a year, more than 73% of listed buildings. Of these, 20 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 — 2 transactions since 2002
  • 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. 98 Heol Maengwyn Grade II 4 m
  2. 102 Heol Maengwyn Grade II 4 m
  3. The Court House Grade II* 8 m
  4. 96 Heol Maengwyn Grade II 9 m
  5. 94 Heol Maengwyn Grade II 14 m
  6. The Court House Grade II* 19 m
  7. Building to rear of Nos.104 & 106 Heol Maengwyn (now part of the Petrol, Station property Grade II 19 m
  8. 90 Heol Maengwyn Grade II 23 m
  9. Maengwyn House Grade II 31 m
  10. 115 Heol Maengwyn Grade II 42 m