Lol that's quite a bit of space! What's the recommended amount of space for a rabbit cage, anyhow?
That's a loaded question that is sure to elicit numerous varied responses. Indoor rabbit owners tend to have more generous recommendations. But there is no "set-in-stone" answer.
Personally, I think that cage size should be decided along with a realistic look at how much out-of-cage time a bunny will get. Rabbits that are free range 24/7 or even just during the day (say, 15 hours/day) can get away with a smaller cage. In this instance, the cage door is pretty much left open all the time, so it serves as a home base for food, water, hay and litter box. In this case, cage size simply doesn't matter (within reason:wink).
On the other hand, rabbits that only get an hour out each day should have a large enough cage (or attached exercise area) to allow sufficient space to run and binky.
My rabbits are free range all day (closed at night). However I have had occasion to take them on extended vacations where they had to be confined to an exercise pen area. From those experiences, I have come to the personal conclusion that rabbits confined for extended periods should have a minimum of 30 square feet of floor space. Upper levels are nice, but I feel they need that large floor space to allow running, dashing and binkying.
So unless a rabbit is allowed hours of daily time outside the cage, I personally recommend 30 square feet.