Ours are in arun in the garden during the day, but the come into hutches in a shed at night. I take them in at night because we live in the countryside and have lots of predators- foxes, stoats, weasel and badgers.
The shed is really a brick building seperated into 3 x 9' by 9' rooms. We hoping to knock down the internal walls next summer and build individual runs inside so they have run access all the time.