Aa Sentry Box (No 631), Brachla is a Grade B listed building in the Highland local planning authority area, Scotland. First listed on 30 May 2003. Sentry box.

Aa Sentry Box (No 631), Brachla

WRENN ID
veiled-groin-finch
Grade
B
Local Planning Authority
Highland
Constituency
Inverness, Skye and West Ross-shire MP: Mr Angus MacDonald (LD)
Country
Scotland
Date first listed
30 May 2003
Type
Sentry box
OS grid reference
NH 561 328
Coordinates
57.36357, -4.39347
Source
Historic Environment Scotland listing

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

Description

The building is a sentry box located at Brachla, constructed between 1956 and 1967, with later refurbishments. It has a square plan and measures approximately 2 metres by 0.75 metres by 0.75 metres. The sentry box features a cross-gabled roof clad in zinc and includes a small central ventilator. It is set on a concrete base and has vertical black painted boarding on the side and rear elevations. Each side displays rectangular panels inscribed with "AA SERVICE," reflecting post-1967 re-branding. The door is plywood covered with a weathering fillet above. The front and side faces have bargeboarded gablets adorned with a square "AA" badge, also from the post-1967 re-branding.

Inside, the flooring is made of chipboard, and the walls are lined with plastic cladding over boarded timber. There is a disconnected single button telephone with a cupboard below it. A central bulkhead light fitting is positioned above a Perspex suspended ceiling.

Local climate

Aa Sentry Box (No 631), Brachla sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 87% 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 58 freeze-thaw cycles a year, more than 97% of listed buildings. Of these, 40 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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  • No EPC on record for this property
  • No sale records on file
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  • 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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