Hangar One is adjacent to the Aviator and overlooks the busy grass runways of Sywell Aerodrome, one of the finest airfields in the country. The Hangar is made up of 3 smaller hangars, originally erected in 1941 to house aircraft used to train RAF pilots during World War II. In 1948 the smaller hangars were dismantled and re-erected together to form the present Hangar One.

Before being converted for use as a Conference Venue, the Hangar was home to a helicopter organisation, which maintained and sold helicopters to customers around the world. In December 2000 work began to renovate Hangar One and transform it into an exciting new venue.

A large bar and kitchen were built into the southern gable end, and a passage to the east side connects the Hangar to the Aerodrome Bar and Restaurant. The doors to the north gable retain access for aircraft and vehicles.

Re-cladding provided the Hangar with an insulated skin and new floor to produce a completely smooth coloured finish. Extensive air extraction, lighting and audio systems have been installed. Although the building is a World War II hangar, with the use of wood veneer, period features and sympathetic lighting the appropriate ambience is provided for any occasion.