Hutches or cages do not provide enough protection to make it safe to leave the rabbit outdoors 24 hours a day. The House Rabbit Society receives many calls every week from baffled people whose rabbit died during the night while confined in a hutch. I don't understand the hutch wasn't even unlocked, and the rabbit didn't have a mark on him. With her acute vision, hearing, and smell, a rabbit can sense the presence of a predator such as a raccoon even in your neighbor's yard. She may panic and injure herself, or she may die of shock.
Many raccoons can open hutches.
Other predators include coyotes, owls, hawks, possums, cats and dogs. I live in the city. Don't think your yard is free of predators just because you live in the city. Raccoons come up through storm drains and arrive in very urban areas. These agile animals can climb tress and open doors.