Cottage, Portkil House is a Grade C listed building in the Argyll and Bute local planning authority area, Scotland. First listed on 25 April 1995. Cottage. 1 related planning application.

Cottage, Portkil House

WRENN ID
deep-transept-bramble
Grade
C
Local Planning Authority
Argyll and Bute
Constituency
Argyll, Bute and South Lochaber MP: Brendan O'Hara (SNP)
Country
Scotland
Date first listed
25 April 1995
Type
Cottage
Address
Cottage, Portkil House, G84 0LF
OS grid reference
NS 251 807
Coordinates
55.98809, -4.8048
Source
Historic Environment Scotland listing

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

Description

This is a cottage dating from around 1840, designed in an L-plan with a slightly later wing added to the northeast. It is a low, single-storey, gabled structure that once served as the factor's house for Portkil House. The exterior features grey cement render with ashlar margins and dressings, chamfered reveals, panelled ashlar aprons at the windows, and advanced bracketed eaves.

On the northwest (entrance) elevation, there is a broad three-bay gable on the outer right, with a lean-to boarded porch addition at the centre and flanking windows. To the left, the gabled wing is advanced and includes a tripartite window, with a window on the right return and a blank bay on the outer left.

The southeast (main) elevation presents a symmetrical three-bay block with a slightly recessed two-bay wing addition on the outer right. The advanced gabled centre bay breaks the eaves and features a window with a bracketed block canopy, flanked by additional windows. The right wing has two tripartite windows symmetrically arranged.

The interior has been modernised. The cottage has twelve-lying-pane sash and case windows, a grey slate roof with lead flashings, and tall sandstone ashlar ridge stacks with circular cans.

Local climate

Cottage, Portkil House sits in one of the wettest parts of the UK, with an average of 1,620 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 48 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 26 follow at least 1 mm of rain in the preceding 48 hours. 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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  • 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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