Originally designed as a loading dock for heavy trucks carrying mail, so this space is oversize as well - 7m deep, door is 4.2m high and 5.6m wide. New motor installed 2009 to change the door to remote control.
So you can treat it as either a loading dock to unload trucks ....
Or as a standard 2 car garage
It dips down below street level, so room for a mezzanine above vehicles if you need extra space.