77 and 78, Lemon Street is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 29 December 1950. Town house, office. 3 related planning applications.

77 and 78, Lemon Street

WRENN ID
broken-paling-weasel
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Date first listed
29 December 1950
Type
Town house, office
Address
77 and 78, Lemon Street, Truro, TR1 2PN
OS grid reference
SW 825 447
Coordinates
50.26232, -5.05167
Source
Historic England listing

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

Description

77 and 78 Lemon Street are a pair of town houses, now used as offices, built around 1809 by the builder Robert Blee. The front is made of local freestone ashlar, with a roof that is hidden behind a parapet and a brick end stack on the left. The buildings are a double-depth mirror-image pair with a passage between them. They rise three storeys above a blocked basement and feature an overall symmetrical four-window front. There is a plinth and a central round-arched passage doorway flanked by two smaller doorways, each with projecting impost blocks, six-panel doors, and plain fanlights. Other openings are topped with shallow segmental arches that have projecting keyblocks. The buildings have moulded cornices under the parapets, with a bolder cornice on No. 78 (to the right). The original windows are hornless sashes with glazing bars, except where the glazing bars have been removed from the ground-floor sashes and the lower halves of the first-floor sashes of No. 77, and later horned sashes have been added to the second floor of No. 78. Inside, there are many original features, including moulded and carved plaster ceiling cornices and bands.

Local climate

77 and 78, Lemon 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • No sale records on file
  • Related listed building consents — 3 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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  2. 76, Lemon Street Grade II 14 m
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  5. No 13 and Attached Forecourt Railings Grade II 31 m
  6. Nos 14 and 15 and Attached Forecourt Railings Grade II 33 m
  7. 16 and 17, Lemon Street Grade II 33 m
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