19 and 20, River Street is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 30 July 1993. A Victorian Townhouse.

19 and 20, River Street

WRENN ID
ghost-gravel-birch
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Date first listed
30 July 1993
Type
Townhouse
Period
Victorian
Address
19 and 20, River Street, Truro
OS grid reference
SW 823 448
Coordinates
50.26346, -5.05518
Source
Historic England listing

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

Description

Nos. 19 and 20 River Street are a pair of townhouses that have been converted into shops with accommodation above. They were built around 1838 and feature Killas rubble with brick arches. The roof is hipped and covered with asbestos slate, and there are cast-iron ogee gutters with lions' heads at the joints. The buildings have a double-depth plan and rise three storeys high, with a three-window range on the first floor. Segmental brick arches are present over the original 16-pane hornless sash windows. The shop fronts were altered in the 20th century. The interiors have not been inspected. These buildings are included for their group value.

Local climate

19 and 20, River Street receives an average of 890 mm of rain a year. This makes it wetter than 66% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% 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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  • 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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