A Large Rabbit Needs a Large Answer
The Californian is one of the bigger rabbit breeds kept as a pet, a broad, muscular animal bred originally as a meat rabbit, and its space needs follow its build. A Californian cannot be housed fairly in a small hutch. Think instead of a home base of at least around eight square feet where it can stretch out fully, turn, and stand upright, used for sleeping, eating, and litter, plus a much larger exercise area it uses every day.
Many owners give a Californian a whole rabbit-proofed room, a shed-style setup, or a dog-pen arrangement indoors. Whichever you choose, judge it by one test: can the rabbit take a running sequence of hops, stop, flop onto its side at full length, and periscope upright without ducking? If any of those fails, the space is too small.
Exercise Space Is Where the Breed Shows Itself
Californians are calm and good-natured, but calm is not the same as inactive. Given room, they patrol, chin objects, dig at mats, and perform sudden joyful runs and twists that need an open run of floor. Several hours daily in a penned-off room section or large exercise pen attached to the base is the realistic minimum, and full-time free access to a secure room is better still.
Because of their size, Californians are poor candidates for upstairs hutches, stacked cages, or anything reached by a steep ramp. Keep everything on one level, with wide doorways in pens, since a broad rabbit turning in a narrow gate is a daily frustration you can design out from the start.
Flooring for a Heavy Rabbit
Weight changes the flooring brief. A Californian presses a lot of rabbit onto its hind feet, so wire floors are unacceptable and thin mats that bunch underfoot are little better. Use solid flooring with grip: low-pile rugs or washable mats over hard floor for exercise areas, and a comfortable, absorbent, non-slip surface in the base that you can clean daily.
Slippery laminate is a genuine obstacle for a large rabbit learning a new room, splaying legs and denting confidence. A rug runner along its main route between base, litter tray, and favourite resting spot solves most of it, and a Californian will quickly adopt the runner as its official road through the room.
Furnishing the Californian's Territory
Furnish at rabbit scale: a litter tray large enough for the whole rabbit plus hay, a hide or cardboard castle with doors cut wide, a heavy water bowl that cannot be tipped by a solid shoulder, and sturdy chew branches and seagrass pieces that survive serious jaws. Tunnels should be the biggest available or made from large boxes, because a Californian in a standard tunnel is a cork in a bottle.
Place hay at the litter tray, water at the opposite end of the base, and resting spots in between so the layout itself encourages movement across the full footprint. A Californian that must cross its space to eat, drink, and rest uses every foot you give it, all day.
Sharing the Space Routine at Home
Large rabbits generate large chores: litter changes, hay in quantity, and an exercise rota someone must actually open and close. If those jobs live in one person's head, the rabbit's space quietly shrinks to whatever is easiest, so agree the routine across the household before it can drift.
KinsLe Family Sharing lets everyone at home see your Californian's profile with its feeding, cleaning, and exercise details, so the person home first gives the big run and the person home last settles the rabbit, each working from the same shared routine.