Short answer
Burglars usually choose a house by judging, from the street, whether anyone is home, how easy it is to get in and out unseen, and what is inside. Signs of an empty house, hidden entry points, and weak doors make a house attractive. Lights, locks, alarms, and attentive neighbors make it a harder choice.
In this article
How do burglars choose which house to break into?
Burglars often choose a house by weighing three things quickly: whether anyone is likely to be home, how easy it looks to get in and out unseen, and what might be inside. The decision is often made quickly from the street or sidewalk, based on what the house shows to anyone passing by.
The important point is that the choice is comparative. An intruder is rarely deciding whether a house can be entered, since almost any house can. The question is whether this house is easier, quieter, or more rewarding than the one next to it. That is why small details matter. A house does not need to be impossible to enter; it needs to look like more effort and more risk than the alternatives on the same street. Many break-ins are opportunistic rather than planned far in advance, which makes what the house shows at a glance even more important.
What signs tell a burglar a house is empty?
Signs that a house is empty include no car in the driveway for long stretches, mail or packages piling up, the same lights on day and night, and a dark house at times when neighbors are home. Predictable routines tell the same story, because a household that leaves at the same hour every day is easy to read.
Occupancy is the first filter because most intruders want to avoid meeting anyone inside. Some will knock or ring the bell first and leave if someone answers, which is one reason a video doorbell or an intercom that lets the household respond without opening the door is useful. Online signals count too. Travel photos posted while the family is still away, or a public calendar of events, tell anyone paying attention when the house will be empty. A home that sits empty for long stretches, such as a second home or a house during a long trip, sends these signals for weeks at a time.
What makes a house look easy to get into?
A house looks easy to get into when its entry points are hidden from view and appear weak: a back or side door screened by hedges or a fence, an open garage, an unlocked gate, a sliding door with only its factory latch, or ground-floor windows left open. Ladders and tools left outside also help an intruder.
Front doors are visible from the street, so the doors that matter most are often the ones nobody sees: the back door, the door between the garage and the house, and patio sliders. Cover is as important as weakness. Tall shrubs under windows, a privacy fence around the backyard, and an unlit side path all let someone work on a door without being seen. The same features that give a family privacy also give an intruder privacy, which is a trade-off worth thinking through rather than ignoring.
Why do alarms, lighting, and neighbors change the decision?
Alarms, lighting, and attentive neighbors change the decision because they raise the chance of being seen, heard, or reported. Someone choosing a target wants a quiet, private approach and time inside. A visible alarm panel, a light that switches on, or a neighbor who looks out the window all take away some of that time and privacy.
Visible measures work only as far as they are believed. A sign in the yard suggests an alarm; a siren and a call to the household show one. The difference between a sign alone and a working, monitored system is covered in our comparison of whether alarm systems deter burglars. An alarm also changes what happens after entry. If a sensor trips, a professionally monitored alarm means operators are alerted and follow the response procedure, instead of a siren that may go unanswered in an empty house.
What does this mean for protecting your own home?
In practice, it means looking at your home from the street and removing the easy answers: make the house look lived in, keep entry points visible and lit, close and lock what is open, and give an intruder a reason to expect detection. Nothing guarantees a house will be skipped, but each step can make it a harder choice.
A useful exercise is to walk around the property at two different times, once in daylight and once after dark, and note where someone could stand without being seen from the street or a neighbor's window. Those spots usually point to the doors and windows that need a better lock, a light, or a sensor first. The broader plan, from entry points to response, is laid out in our guide to preventing home break-ins.