Standby generator building, RAF Daws Hill bunker compound is a Grade II listed building in the Buckinghamshire local planning authority area, England. First listed on 11 October 2013. Emergency power plant.

Standby generator building, RAF Daws Hill bunker compound

WRENN ID
twelfth-slate-root
Grade
II
Local Planning Authority
Buckinghamshire
Constituency
Wycombe MP: Emma Reynolds (Lab)
Country
England
Date first listed
11 October 2013
Type
Emergency power plant
Address
Standby generator building, RAF Daws Hill bunker compound, Standby Generator at Former Bunker Compound, High Wycombe, Bucks
OS grid reference
SU 867 921
Coordinates
51.62108, -0.74797
Source
Historic England listing

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

Description

The standby generator building at RAF Daws Hill bunker compound is an emergency power plant likely built in the 1980s. It is a partly-buried reinforced concrete structure, with the rear wall and the walls of smaller rooms reinforced internally with steel plates for enhanced protection against nuclear explosions.

Access is from the north through two pairs of double steel doors, which were wide enough for the installation of the plant's diesel generators, now removed. To the east, there are separate rooms that housed the plant's switchgear, which remains intact. Above these rooms are two vents that may serve as an air inlet and exhaust outlet. The building does not include any decontamination facilities. According to the Planning (Listed Buildings and Conservation Areas) Act 1990, the surviving plant and switchgear, which are of standard specification for the period, are not considered to have special architectural or historic interest.

Local climate

Standby generator building, RAF Daws Hill bunker compound sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 86% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 87% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 59% of listed buildings. Of these, 16 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.

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