I've had up to ten does in a hutch that's ten feet by three feet. Ah, sorry, just noticed the "NSW" under your name. 3.1 meters by 1 meter. The hutch is about a meter tall so there's room for boxes and ledges for them to hop on. That increases the effective floor space. These are smaller rabbits, about 2.75 kilos (6 pounds). They are also English angora and very docile. Temperament is something that is considered when they're bred, so they may be more mellow than the usual meat rabbit.
That's only 3 square feet (not sure what that is in meters) per bun, but they have the length to run up and down and the various boxes and ledges to hide in and around. It's a meter off the ground with a wire floor so everything falls through and no litter. When it's time to plant the garden, it all gets cleared out.
The buck hutch is the same dimensions, except there's only three rabbits per level and they're in their own spaces, about one meter by one meter so they have about 10 square feet each. They each have a separate resting ledge that they can also hide under so that gives them a bit more floor space and they can visit through the wire walls with their neighbors.
On a side note, we just got back from a vacation to Australia & NZ, the meat pies there are awesome! Along with a flat white, perfect lunch!