The Rottweiler is a working breed. He is generally not happy sitting around doing nothing all day. A large yard with a six-foot high fence is ideal, but adult Rottweilers have been kept successfully in large apartments. The yard is essential if a puppy or young dog is being acquired; it will help to keep the dog exercised and reduce boredom which in turn may prevent destructive behavior. If you don't have the space, consider a smaller or less active breed. Personal commitment on the part of the owner is the most important thing. People willing to walk their dog on a regular basis will find a more personal and bonding relationship developing than just letting them run by themselves in the yard. Your Rottweiler will require a minimum of two good walks each day (10 to 20 minutes each). Adequate exercise is necessary to maintain the good health of your Rottweiler, as they have a tendency to gain weight without proper exercise.

FAQs taken from American Rottweiler Club