The distance a person can travel outside when they are on house arrest will depend on the laws in their city and state. Some people can go the entire distance of their property. Others may not be able to go more than 20 or 30 feet from the front door. The courts will usually send a court officer to the home and measure distances such as from the front door to the mailbox or to where an animal is being kept. If a person travels outside their range an alarm is sent to the police.