The Museum Annex is situated on the front left of Hangar 2, this is all on one floor but access is by a step and double doors.  The internal corridors and rooms allow access for pushchairs and wheelchairs but mobility scooters could have restricted access to parts of the building.
The Annex contains an accessible toilet.

The Museum Vehicle Hanger is also on one level with no steps.  However access to some Vehicles (when permitted) is limited where vehicle height and access can be tricky due to the design of doors/steps on some vehicles.
The Vehicle Hangar has a porta-loo outside the Hangar

Baby facilities are available within the Annex

Dog bowls are available for water