Walled Garden at Garth Farm and Heylin Farm is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 11 January 2019. Garden.

Walled Garden at Garth Farm and Heylin Farm

WRENN ID
second-span-solstice
Grade
II
Local Planning Authority
Powys
Constituency
Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
Country
Wales
Date first listed
11 January 2019
Type
Garden
Address
Walled Garden at Garth Farm and Heylin Farm, Guilsfield
OS grid reference
SJ 213 107
Coordinates
52.68883, -3.16449
Source
Cadw listing

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

Description

The walled garden at Garth Farm and Heylin Farm is a rectangular structure aligned east-west and facing south, situated on a sloping site. It is built of red brick, with the walls standing at full height and featuring intact stone capping. There is a ramped drop in height at the midpoint of both the east and west side walls, and the exterior includes plain pilasters. The north wall is heated, with evidence of boiler structures noted on the north side during an inspection for inclusion in the Parks & Garden register. The garden has curving corners at the northeast and northwest, with a service door located near each corner; the door on the northwest side retained a wooden door at the time of inspection. A formal doorway with a four-centred arch is centrally located in the south wall. Although the internal east-west dividing wall is no longer visible, remains of stone steps were observed on the east side during an inspection in 2017. In the southwest corner, there is a single-storey lean-to shed that is currently roofless but was previously covered with corrugated iron.

Local climate

Walled Garden at Garth Farm and Heylin Farm receives an average of 870 mm of rain a year. This makes it wetter than 64% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 50% of listed buildings.

It experiences an average of 40 freeze-thaw cycles a year, more than 77% 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

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Nearby listed buildings

  1. Farm Buildings at Garth Farm and Heylin Farm Grade II 269 m
  2. Gates and Gate Piers at the former E entrance to Garth Grade II 426 m
  3. Brooklands Hall (School and Golf Academy) Grade II 706 m
  4. Lower Garth (also known as Garth Isaf) Grade II* 714 m
  5. Fron-y-Fele Grade II 845 m
  6. The Porches Grade II 906 m
  7. Porches Grade II 911 m
  8. Entrance Gate Piers and attached walls to Brooklands Hall Grade II 916 m
  9. The Porches Grade II 916 m
  10. The Square Grade II 963 m