Longfield House is a Grade II listed building in the Wiltshire local planning authority area, England. First listed on 29 December 1950. House. 3 related planning applications.

Longfield House

WRENN ID
stark-flue-holly
Grade
II
Local Planning Authority
Wiltshire
Constituency
South West Wiltshire MP: Dr Andrew Murrison (Con)
Country
England
Date first listed
29 December 1950
Type
House
Address
Longfield House, Mortimer Street, Trowbridge, BA14 8BG
OS grid reference
ST 856 575
Coordinates
51.31661, -2.20733
Source
Historic England listing

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

Description

Longfield House is a late 18th-century building with early 19th-century additions. It is two storeys and has an attic. The building is constructed of ashlar stone, set on a projecting plinth. A string course runs along the first-floor level, and rusticated angle pilasters are present. A moulded cornice sits below a parapet with projecting coping, topped by a slate roof. The front façade features three windows on each floor; the first-floor windows are glazing bar sashes with four panes, moulded jambs, and voussoir heads. The ground-floor windows are similar. A central six-panel door is set within a delicate stone Doric porch with two columns, wall pilasters and an entablature enriched with a key pattern ornament, a pulvinated frieze, and a small cornice. The porch has a glazed roof and is approached by four steps. Wrought iron dog gates lead to the door. An early 19th-century extension wing projects to the left, featuring three arched windows with raised stone surrounds, key blocks, rustic quoins, and a glazed roof.

Local climate

Longfield House receives an average of 860 mm of rain a year. This makes it wetter than 61% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 64% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% of listed buildings. Of these, 15 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.
  • Sale history — 8 transactions since 1996
  • 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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  6. 52 and 53, Castle Street Grade II 289 m
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