Nos 1,2 and 3, Trehelder is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 12 May 1988. A C20 Almshouses. 1 related planning application.

Nos 1,2 and 3, Trehelder

WRENN ID
dusk-turret-gold
Grade
II
Local Planning Authority
Cornwall
Constituency
North Cornwall MP: Ben Maguire (LD)
Country
England
Date first listed
12 May 1988
Type
Almshouses
Address
Nos 1,2 and 3, Trehelder, St Mawgan, Mawgan-In-Pydar, TR8 4EW
OS grid reference
SW 872 657
Coordinates
50.45254, -4.99791
Source
Historic England listing

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

Description

Nos. 1, 2 and 3 Trehelder are three attached houses built in 1903 as almshouses in memory of Emily Bridges Willyams. They have seen few later alterations and are constructed from stone rubble with granite dressings. The houses feature a tiled roof with gable ends adorned with bargeboards and axial stacks with brick shafts.

The overall plan is U-shaped, with one house in the central range and one in each front wing. The exterior is single storey and symmetrical, showcasing a central gabled porch flanked by bays on either side, with front wings projecting to the right and left. The porch includes a half-glazed door topped by a four-centred arched fanlight with a hood mould. The fanlights above all the doors contain stained glass featuring the initials EBW. There is a recessed datestone above the porch. To the right and left of the porch are three-light windows with casements and top lights. Each wing has a similar door and a two-light window on the inner side. The front gable end of each wing is highlighted by a canted bay with a two-light window at the front and single lights on the sides. The interior has not been inspected.

Local climate

Nos 1,2 and 3, Trehelder sits in a wetter-than-average part of the UK, with an average of 1,000 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 6 freeze-thaw cycles a year, fewer than 96% of listed buildings. Of these, 2 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
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  • Related listed building consents — 1 application
  • 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
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Nearby listed buildings

  1. Holly Cottage the Lodge Grade II 118 m
  2. Gilton Cottage Grade II 125 m
  3. House Immediately West of Lanherne Avenue Grade II 125 m
  4. The Falcon Inn Grade II 184 m
  5. Hawkey's Grade II 192 m
  6. St Mawgan School Grade II 194 m
  7. Lychgate at East Entrance to Churchyard of Church of St Mawgan Grade II 214 m
  8. Lanherne Carmelite Convent Grade I 228 m
  9. Boundary Wall to Lanherne Carmelite Convent Grade II* 238 m
  10. Church of St Mawgan Grade I 244 m