Stairwells are one of the most common places for serious falls in commercial and residential buildings. When the lighting in a stairwell is too dim, flickering, or completely out, the risk of a catastrophic injury skyrockets. If you have taken a nasty spill in a poorly lit stairwell, the legal principle of premises liability may allow you to recover compensation from the property owner or manager. The key question is whether the owner knew or should have known about the dangerous condition and failed to fix it.

Premises liability law holds that property owners have a duty to keep their premises reasonably safe for anyone who is legally on the property. For stairwells, that duty includes ensuring adequate illumination at all times, especially during hours when the stairwell is used. “Adequate” does not mean a single dim bulb at the bottom. It means enough light for a person with normal vision to see the edge of each step, any obstacles, and the handrail clearly. Courts often look at building codes and industry standards to determine what counts as sufficient lighting. If a stairwell is dark enough that you cannot see where you are stepping, the owner has likely breached that duty.

Not every fall in a dark stairwell leads to a winning case. You must prove that the property owner had actual or constructive notice of the poor lighting. Actual notice means someone complained about the burned-out bulb, or the owner saw the darkness himself. Constructive notice means the condition existed for so long that a reasonable owner would have discovered and fixed it. If a light has been out for three days in a busy office building, a jury will likely find that the owner should have known about it. If the bulb blew out ten minutes before your fall, the owner may not be liable because he did not have a reasonable chance to repair it.

The type of visitor you are also matters. If you are a customer in a store or a tenant in an apartment building, you are an “invitee.” The owner owes you the highest duty of care—actively inspecting for dangers and fixing them promptly. If you are a social guest, you are a “licensee.” The owner must warn you of known dangers but does not have to actively search for them. If you are a trespasser, the owner generally only must avoid intentionally harming you. Most stairwell falls involve invitees or licensees, so the owner’s responsibility is serious.

Common scenarios that generate valid claims include: a flickering fluorescent tube in a parking garage stairwell that causes you to misjudge a step, a lobby stairwell where the timer-based lighting shuts off while you are descending, or a residential building where the landlord never replaces bulbs after tenants complain. In each case, the poor lighting is the direct cause of the fall. But beware of the “open and obvious” defense. If the stairwell is so dark that any reasonable person would have used a flashlight or walked carefully, the owner may argue that you assumed the risk by proceeding. Courts are split on this, but in many states, the defense fails if the owner could have easily fixed the lighting and did not.

If you decide to pursue a claim, you will need to preserve evidence. Take photographs of the stairwell immediately after the fall, including the burnt-out lights, the area around them, and any warning signs. Get the names and contact information of witnesses. Report the incident to the property manager in writing and keep a copy. Seek medical attention right away, even if you think you are fine, because internal injuries from stair falls can be delayed. Your medical records will link the injury to the fall.

Insurance companies representing property owners will often argue that your own negligence caused the fall—you were not paying attention, you were carrying too many items, or you were wearing inappropriate shoes. While comparative fault can reduce your damages, it rarely eliminates them entirely if the lighting was genuinely inadequate. A jury can assign a percentage of fault to each party. For example, if you were texting while walking down the dark stairs, you might be 30% at fault, and the owner 70%. You would then recover only 70% of your total losses.

The damages you can recover include medical bills, lost wages, pain and suffering, and permanent disability if you suffer a spinal injury or traumatic brain injury from the fall. Stairwell falls frequently cause broken hips, wrists, and ankles, especially in older adults. Those injuries can lead to long-term care needs and a diminished quality of life. A well-prepared premises liability case will present a clear timeline of the lighting failure, evidence that the owner knew or should have known, and a direct causal link between the darkness and your fall.

If you are a property owner, the lesson is cheap and simple: replace burnt-out bulbs immediately, install emergency backup lighting, and conduct regular inspections of all stairwells. A few dollars in maintenance can prevent a six-figure lawsuit. If you are a victim, do not assume the fall was just bad luck. The dark stairwell was a hazard that someone else created or allowed to persist. The law gives you a remedy, but only if you act quickly, document the scene, and consult an attorney who handles premises liability cases.