Burglary means entering a building, or remaining inside one, without permission and with the intent to commit a crime once inside. That is the whole definition in modern American law. There is no requirement that anyone break a window, pick a lock, or actually steal anything, and the old common-law rule limiting burglary to nighttime entries into homes is largely gone. What does burglary mean in practice today? It means the law is watching two things: whether you were allowed to be where you were, and what you planned to do when you got there.
Because the elements are narrower than people assume and broader than people expect at the same time, a lot of conduct that looks like simple trespassing or shoplifting gets charged as a felony burglary, and a lot of conduct that looks like a burglary in the movies turns out to be something else.
Burglary Compared to Theft, Robbery, and Trespass
These four words get used as if they were interchangeable. They are not, and the differences drive the charges.
Theft, sometimes called larceny, is taking someone else’s property without permission. It does not require entering a building and it does not require force. A shoplifter and a pickpocket both commit theft.
Robbery is theft plus force or intimidation against a person. The confrontation is the point, which is why robbery is classified as a violent crime rather than a property crime.
Trespass is the closest cousin to burglary. Both involve being somewhere you have no right to be. The dividing line is what was in your head when you entered. A trespasser has no criminal plan beyond the unauthorized presence itself; a burglar entered with the intent to commit a crime inside. Trespass is usually a misdemeanor. Add criminal intent to the same physical act and it becomes burglary, which is almost always a felony.
A single incident can involve all three. Someone who sneaks into a house planning to steal, grabs a wallet, and shoves the homeowner on the way out has committed burglary at the door, theft when they took the wallet, and robbery when they used force. Each is charged separately.
What Counts as Entering
The entry element has two forms, and either one is enough.
The first is unauthorized entry. Modern statutes require no force at all. Walking through an unlocked door without permission counts. So does reaching a hand or a tool through an open window. Courts treat even a partial intrusion of a body part or an instrument as sufficient to establish entry.
The second is unlawful remaining. This covers the person who walks into a place during business hours with permission, then stays after that permission ends. The classic example is someone who hides in a storeroom until the shop closes. The moment authorization expires, their continued presence becomes trespass, and if they intended to steal after hours, it becomes burglary.
There is also what the law calls constructive entry. If someone directs another person — often a child who cannot legally consent — to go inside and take something, the person who orchestrated the entry is treated as though they entered the structure themselves. The law looks at who directed the act, not just who walked through the door.
What Counts as a Building
At common law, only a dwelling qualified. Modern statutes have widened the category dramatically. The FBI defines burglary as the unlawful entry into a building or other structure, and most states follow suit.1FBI. Crime Data Explorer Shops, offices, warehouses, barns, storage sheds, and even tents can qualify.
Many states also extend burglary laws to vehicles, trailers, and watercraft, particularly when those are designed for overnight use. A locked camper or a houseboat used as a residence generally gets the same protection as a traditional home. The FBI’s reporting program specifically includes house trailers, houseboats used as permanent dwellings, railroad cars, and vessels within its definition of protected structures.2Federal Bureau of Investigation. Crime in the U.S. 2018 – Burglary
The yard and outbuildings around a home — the “curtilage” in legal terms — can also fall within a burglary statute, depending on how closely the area is tied to the residence. A detached garage a few feet from the back door is far more likely to qualify than an open field at the edge of a large lot.
A home still counts as a dwelling even when the residents are away on vacation. The legal focus is on whether the place is used for living, not whether anyone was inside at the moment of entry.
The Intent Requirement
This is where burglary cases are won and lost. Prosecutors must prove that at the moment the person entered, they intended to commit a crime inside. Usually the planned crime is theft or another felony, though some states include any criminal offense. Without that mental state, the same physical act is just trespass.
Timing matters. The intent must exist when the person crosses the threshold. Someone who walks into a friend’s unlocked apartment to hang out and then, on impulse, pockets a watch has not committed burglary. That is theft. The criminal plan formed after the entry, not before.
The flip side is just as important: the crime is complete as soon as entry and intent overlap. Nothing has to be taken. No one has to be hurt. Someone who walks into a store intending to rob the register and then flees empty-handed has still committed burglary. The law cares about the criminal resolve at the door, not the outcome inside.
Since nobody announces their intentions on the way in, prosecutors rely heavily on circumstantial evidence. Burglary tools like pry bars or lock picks, gloves or a mask, scouting the location beforehand, entering through a window or roof instead of a door — all of this helps a jury infer what the person planned. Some states go further and treat a stealthy entry without the owner’s consent as initial evidence of criminal intent, which puts practical pressure on the defendant to offer an innocent explanation.
How Burglary Is Graded and What Makes It Worse
Almost every state grades burglary into degrees, and the factors that push a case up the ladder are remarkably consistent.
- Occupied dwelling. Entering a home where someone is present is treated as the most dangerous form of burglary in nearly every state, because of the risk of a violent encounter.
- Weapons. Being armed with a firearm, knife, or other deadly weapon during the entry bumps the offense to the highest degree, often with a mandatory minimum sentence.
- Injury to a person. If anyone inside is physically hurt during the burglary, the charge typically escalates to the most serious felony tier.
- Nighttime entry. Some states still treat nighttime burglary more harshly than daytime entry, a holdover from the common-law rule, though many have dropped the distinction.
At the low end, entering an unoccupied commercial building with no aggravating circumstances is the least severely punished form, but it remains a felony in most states. Sentencing ranges vary widely. Lower-degree burglaries may carry a few years of prison time, while first-degree residential burglary with aggravating factors can produce sentences of 15 to 25 years. Fines are jurisdiction-dependent and often secondary to the prison term.
Some states carve out “home invasion” as a separate offense that sits above burglary when the offender knew someone was likely inside and used a weapon, committed or threatened violence, or sexually assaulted an occupant. Other states fold the same conduct into their highest degree of burglary. Either way, entering an occupied home while armed or violent is treated as one of the most serious property crimes in American law.
Common Defenses to a Burglary Charge
Because burglary requires both unauthorized entry and criminal intent, the strongest defenses attack one of those two pieces.
- Consent. If the property owner or an authorized occupant permitted the defendant to enter, the entry was not unauthorized. This defense breaks down if the consent was obtained by deception or if the defendant exceeded the scope of the permission, for example by refusing to leave when told.
- No criminal intent at entry. A defendant who entered for a lawful reason — to pick up belongings, to do repair work, by honest mistake — lacks the mental state burglary requires. Reasonable doubt about when the intent formed can be enough.
- Claim of right. If the defendant genuinely believed they had a legal right to be in the building or to take the property inside, that belief can negate the intent element. The belief has to be honest, but it does not have to be correct.
- Intoxication. Because burglary is a specific-intent crime, voluntary intoxication can serve as a defense if the defendant was too impaired to form the required intent. Juries are generally skeptical, some states have narrowed or eliminated the defense, and even when it succeeds it usually reduces the charge rather than producing an acquittal.
These defenses are fact-intensive. The existence of a theoretical defense says nothing about whether it will work against the prosecution’s circumstantial case.
Consequences That Outlast the Sentence
A felony burglary conviction follows a person well past release, and the collateral effects are often more disruptive than the sentence itself.
Firearm rights. Federal law bars anyone convicted of a crime punishable by more than one year of imprisonment from possessing a firearm or ammunition.3Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts Felony burglary almost always clears that threshold, which effectively ends legal gun ownership. Some states impose broader restrictions on top.
Voting rights. The effect on voting depends on the state. A few states never revoke the right. Most strip it during incarceration and restore it automatically on release or after parole and probation. A smaller group requires a pardon or an additional waiting period.4National Conference of State Legislatures. Restoration of Voting Rights for Felons
Employment and professional licensing. A felony record makes background checks much harder to pass, and licensed professions — healthcare, education, finance, real estate, law — run their own reviews. Convictions involving theft or dishonesty tend to be treated especially harshly by licensing boards.
Housing. Private landlords routinely screen for felonies, and federal housing assistance programs can disqualify applicants based on criminal history. For many people, stable housing is the most persistent obstacle after release.
Taken together, these downstream effects make burglary convictions disproportionately costly relative to the paper sentence. Someone convicted of entering an empty shed with intent to steal tools may serve a modest term, but the felony label reshapes employment, housing, and civil rights for years afterward.