Casing a house means secretly watching a home to plan a burglary. Someone casing your house is studying your schedule, your entry points, and your security so they can get in, grab what’s valuable, and get out before anyone notices. It is the planning phase of a break-in, and in many situations it is itself a crime, even if the person never sets foot inside.
What Someone Casing Your House Is Trying to Learn
A person watching your home is answering a short list of questions. When is nobody there? How do I get in? How do I get back out quickly? What inside is worth taking?
Your schedule is the most valuable piece. When you leave for work, when you come home, how long you’re gone on weekends, whether you travel. Most residential burglaries happen during the day, with the heaviest concentration between roughly 10 a.m. and 3 p.m. The casing phase is where someone maps that empty window for your household specifically.
They are also cataloging entry points: ground-floor windows left cracked, side doors hidden from neighbors, sliding glass doors with weak locks, a fence gate that doesn’t latch. They note what security you have, whether that’s cameras, an alarm sign, motion lights, or a dog. And they consider the exit: how fast they can reach a main road and whether alleys or trees give cover.
The average burglar spends fewer than twelve minutes inside once entry is made. That speed only works because the planning happened first.
How Casing Happens
The simplest tactic is driving or walking past a home repeatedly at different times. Someone jogging the same route past your house every morning and evening is not inherently suspicious, which is exactly why the method works.
A more direct approach uses a pretext. Criminals sometimes pose as utility workers, delivery drivers, or door-to-door salespeople to see inside, confirm whether anyone is home, and read how you react to a stranger. People impersonating utility employees, often in hard hats and high-visibility vests, have talked their way into homes, walked through observing the contents, and left without doing any actual work.
Watching from a parked car on a nearby street is another common approach, particularly in neighborhoods where street parking is normal enough that an unfamiliar vehicle doesn’t stand out. Some will test whether a home is occupied by tucking a flyer in the door or placing a small object near the entrance and checking later to see if it moved. A flyer still there two days later suggests nobody is home.
Physical surveillance isn’t the only method anymore. Google Street View and satellite imagery give anyone a detailed look at your layout, fencing, and vehicles. Law enforcement has documented burglary rings using Google Maps to select targets and plan escape routes. Social media adds another exposure: posting vacation plans, airport check-ins, or real-time travel photos tells anyone watching your public accounts that your home is empty. Burglaries are roughly 11 percent more common during summer months, which tracks with when vacation posts peak.
Signs Your Home May Be Being Watched
No single sign confirms anything. What matters is a pattern, or a combination that doesn’t add up.
- The same unfamiliar vehicle parked on your street at different times, or the same person walking past on multiple days.
- Someone photographing your home, studying it from across the street, or driving past slowly while looking at the property rather than the road.
- An unsolicited worker or salesperson asking oddly specific questions about your schedule, how many people live there, or whether you have an alarm.
- Flyers, door hangers, or small objects placed near your entrance that seem designed to reveal whether anyone is home. Repeated knocking at odd hours followed by the person leaving when you answer.
- Unfamiliar people asking your neighbors about you, your work hours, or when you are typically away.
One thing you can probably stop worrying about: supposed secret chalk marks or stickers that burglars use to mark target homes. The idea has circulated widely online, but fact-checkers and law enforcement agencies that investigated it found the markings had ordinary explanations, like planned utility work. The method is also inefficient: a criminal could simply write down an address instead of making extra trips to mark and later read a symbol that weather or a homeowner can erase.
Is Casing a House a Crime?
Yes, it can be, even when nothing is stolen and no one is touched. The legal theory that gets you there is criminal attempt.
Under the Model Penal Code, which has shaped criminal law in most states, a person is guilty of an attempted crime when they purposely take a “substantial step” toward committing it. The code specifically lists “reconnoitering the place contemplated for the commission of the crime” as conduct that can qualify as a substantial step, so long as it strongly corroborates criminal intent. “Lying in wait, searching for or following the contemplated victim” is listed in the same category.1University of Pennsylvania Law School. Model Penal Code (MPC)
In practical terms, if someone is caught watching your house and police can show they intended to burglarize it, the surveillance itself can be charged as attempted burglary. The hard part is proving intent. Someone sitting in a parked car near your home is not committing a crime by sitting there. But if that person has burglary tools in the vehicle, has been seen photographing entry points, or has communicated plans with an accomplice, the behavior starts to meet the substantial-step standard.
Many states also have prowling or loitering-with-intent statutes that criminalize lurking near a residence under circumstances suggesting criminal purpose. These are usually misdemeanors with a lower evidence bar than attempted burglary. Officers can often make an arrest based on the totality of behavior, such as peering into windows at night, trying door handles, or fleeing when spotted, without direct proof of a specific planned crime.
What to Do If You Suspect Someone Is Casing Your Home
Do not confront the person. You don’t know whether they’re armed, how they will react, or whether a confrontation will accelerate rather than prevent a crime.
Document what you can from a safe position. Write down or photograph the vehicle’s make, model, color, and license plate. Note the person’s appearance, clothing, and direction of travel. Record the time and date. If you have a doorbell camera or security system, save the footage and back it up to the cloud rather than keeping it only on the device.
Call your local police non-emergency line to report the activity. If someone is actively trying to enter your home or behaving in a way that feels immediately threatening, call 911. Be specific when you report. “I’ve seen the same silver sedan parked in front of my house three times this week between 2 and 4 p.m., and the driver appears to be watching my home” is far more useful to police than a general report of someone suspicious in the neighborhood.
Tell your neighbors. An informal network of people paying attention is one of the oldest and most effective crime prevention tools. Research by the Department of Justice found that neighborhood watch programs are associated with a 16 to 26 percent reduction in crime.2Office of Justice Programs. The Effectiveness of Neighborhood Watch
Making Your Home a Harder Target
The whole point of casing is risk assessment. Someone is deciding whether your house is worth the danger. Everything you do to raise that perceived danger pushes them toward a different target.
Alarm systems are the single most effective deterrent. Homes with monitored alarms experience fewer break-ins, and when burglaries do occur at alarmed homes, the intruder spends less time inside and steals less. Visible signs of an alarm, like yard signs and window decals, have a deterrent effect of their own, though a monitored system provides actual protection beyond the bluff.
Visible security cameras, especially doorbell cameras, both deter casing and capture evidence if it happens anyway. Position them to cover your front door, driveway, and any side entrance that isn’t visible from the street. Store footage in the cloud so it survives even if the camera is taken.
Lower-tech measures matter too. Dogs rank consistently high in surveys of convicted burglars, even small ones that bark. Trim landscaping so windows and doors are visible from the street. Motion-activated exterior lighting makes nighttime surveillance uncomfortable. Reinforce door frames and add deadbolts. Keep the garage door closed even when you’re home.
On the digital side, keep your social media accounts private and avoid posting travel plans or real-time vacation photos. Secure your home Wi-Fi with a strong password and current encryption. If you use smart locks or cameras, keep their firmware updated and turn on two-factor authentication. When you’re away, use timers on lights and leave a television or radio playing. Surveys of convicted burglars have found that most would abandon a target if they heard a TV or radio inside.