To accomplish an off limits area for your dog that will be permanent: Patience is required. If you have not started from the beginning with an off limits area, learning will take longer.
For those who are about to bring home a puppy, off limits are a good idea from the start. Off Limits teaches the puppy that not everything is theirs. You have your space as they have theirs. Decide on a room or area that you do not want the dog to enter. It could be anywhere or any room such as the bathroom where trash can be dangerous to a puppy or a closet with cleaners and bleach.
1. Any time the dog looks as though they are getting close to the Off Limits area, follow them and watch. If they touch the area with their nose or paw. Say “No”. If they continue, push them away from the area. If they try to continue, they should be moved to another room or exercise pen. If they turn away from the area, reward with a treat or “good boy”.
2. If the dog refused to turn away and was put in an exercise pen, Wait about 10 minutes and then allow the dog to return to the area. Repeat the instructions in step 1: Say “No”. If they continue, push them away from the area. If they try to continue, they should be moved to another room or exercise pen. If they turn away from the area, reward with a treat or “good boy”.
3. Repeat as necessary until the dog walks by the area without looking or sniffing toward the area. Reward for this behavior. This is an important last step to reinforce good behavior.