Treneere Manor is a Grade II* listed building in the Cornwall local planning authority area, England. First listed on 7 February 1974. A Georgian Mansion. 5 related planning applications.

Treneere Manor

WRENN ID
former-glass-thunder
Grade
II*
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Date first listed
7 February 1974
Type
Mansion
Period
Georgian
Address
Treneere Manor, Penzance, TR18 3HR
OS grid reference
SW 467 312
Coordinates
50.1273, -5.54447
Source
Historic England listing

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

Description

Treneree Manor was built in 1758 and is a notable small mansion constructed from granite ashlar. It features a modillion eaves cornice, chamfered quoins, and a stringcourse. The east front has two storeys and a basement, with three windows; the central section projects forward and is topped with a pediment that contains a lunette. The windows are sashes with glazing bars. The central doorway is framed by Tuscan three-quarter columns and an entablature, topped with a semi-circular fanlight that includes a carriage lamp, and it has a fielded panel door. There are steps leading to the doorway, which are flanked by iron railings. A slate mansard roof has been added later. Inside, the dining room is panelled and features doorcases and a fireplace, while the drawing room has 18th-century wallpaper and a fireplace. The staircase has Tuscan column newels and plain balusters.

Local climate

Treneere Manor sits in a wetter-than-average part of the UK, with an average of 970 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 1 freeze-thaw cycle a year, fewer than 99% of listed buildings. Average temperatures at this location have risen by 0.2°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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  • No EPC on record for this property
  • Sale history — 2 transactions since 2007
  • Related listed building consents — 5 applications
  • 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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