Camera Obscura Building

The Camera Obscura Building was constructed between 1927 and 1931 for the Air Ministry’s School of Army Co-Operation at RAF Old Sarum. It is a single-storey structure made of brick in stretcher bond, featuring a pre-cast concrete roof covered in felt and a concrete floor. The building has concrete lintels over the openings, with windows that have metal casements and concrete sills. The door and window shutters are made of timber.

The building has a rectangular plan, measuring approximately 4.5 meters by 3.7 meters. The principal elevation faces north-west, with a door located to the right and a central casement window. Both the north-east and south-east (rear) elevations have a central window, while the south-west elevation features a fixed metal ladder leading to the roof. The former opening to the roof is sealed with boarding.

Inside, there is a step up from the door into a single room that includes a central boarded aperture in the ceiling, which is lined with metal casing. The three casement windows have timber shutters, and there are light fittings on both the ceiling and the wall.