Hoy, Lyness, Former Diesel Engine Pump House

Circa 1938. Tall 6-bay gabled former pump house part of a significant and large grouping of military structures at Lyness situated next to Scapa Flow. Perpendicular protruding gabled range to the east. Separate raised metal water tank to the west. Predominantly steel frame construction with rendered brick walls, and thickened concrete base course to cill height. North and south elevations have 3 bays and a blind oculus in the centre bay. Multi-pane metal windows with hopper openings.

The interior, accessed via doors to the west and north elevations, was seen in 2013 and is divided into 2 spaces, a boiler room and a pump room. Most of the machinery needed to pump oil, such as engines, boilers and pumps, remains in situ.