Water Damage and Neighbor Disputes
By Lyle Therese A. Hilotin-Lee, J.D. | Legally reviewed by Laura Temme, Esq. | Last reviewed June 13, 2025
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Water damage disputes between neighbors hinge on the nature of the damage and the actions of the neighbor. If your property suffers from water intrusion due to a neighbor's negligence or alterations, you may be entitled to compensation. Key factors include whether the neighbor unreasonably altered their property to increase water flow onto yours and whether the damage was foreseeable. Legal recourse varies based on the type of water damage and the specific circumstances
Property owners have legal remedies available when adjacent properties cause water intrusion, flooding, or other water damage into their property. If a neighbor's negligence causes water damage to your property, you may be entitled to compensation.
Dealing with water damage caused by your neighbor can be overwhelming. This is particularly true if insurance companies or your neighbor refuse to take responsibility. If you have questions or concerns related to water damage caused by your neighbor, talk to a real estate attorney. They can give you legal advice on your rights and the steps that you can take to compensate for the damages.
Types of Water Damage from Neighbors
Understanding the different types of water damage that your neighboring property can cause is crucial in determining liability. Each type of water damage has distinct legal recourse and may require a different resolution.
Surface Water
In general, a neighbor is not responsible for the damages to your property caused by water naturally flowing to your land. For instance, rainwater and other land conditions.
However, if your neighbor's landscaping or alteration to their property causes more water to run onto your own property than would naturally occur, you may have some recourse.
Different rules of law may impose liability on your neighbor. Before you take action, it is important to talk to an experienced real estate attorney. They can help you review the regulations in your state and determine your options.
Water Damage from Upstairs Neighbors
If you live in an apartment or a condo, upstairs neighbors may sometimes cause water damage to your unit. This can occur either through overflowing bathtubs or sinks, broken pipes or appliances, clogged drains, or poor plumbing maintenance.
In most cases, your upstairs neighbor will be liable for the damage caused to your property if the incident originated in their unit. Co-owners of condominiums also have a duty of care to maintain their units and prevent harm to others. The courts often consider this negligence when a co-owner fails to act reasonably, causing damage to another unit.
Of course, for renters, the first step is to talk to your landlord or property manager. Renters are generally not responsible for fixing or paying for damage caused by leaky pipes and similar issues. However, they might be on the hook for damage they directly cause, such as letting a bathtub overflow.
Careless Water Damage
Careless water damage is often the result of simple accidents and forgetfulness. Some sources of these types of damages include:
- Leaking or broken water hoses
- Leaky sprinkler heads
- Broken, frozen, or burst water pipes
- Clogged rain gutters
If you experienced property damage caused by the negligence of your neighbor, you may be able to collect compensation for the damages. You can also get a court order that directs your neighbor to stop doing whatever is causing the water damage to your property.
Can I Sue My Neighbor for Water Runoff Damage?
Yes, you can sue your neighbor for water runoff in certain situations. The key in this legal action is to prove that your neighbor caused the damage through their act or negligence. You'll generally need to prove that:
- Your neighbor made changes to their property in a way that sends more water onto your land
- The water damage was foreseeable
- The changes were unreasonable or negligent
- You have proof of the water damage and costs
Courts examine the factors surrounding each case. They assess whether the neighbors' actions were unreasonable or negligent and whether they caused substantial harm. The courts may also consider the extent of the damage and the costs associated with repairing it. They'll consider what a reasonable person would have done, and determine whether your neighbor acted accordingly.
Can a Neighbor Drain Water onto Your Property?
In general, no. Your neighbor cannot intentionally drain water onto your property. This includes the following:
- Directing downspouts towards your property line
- Installing a drainage system that sends water to your property
- Grading their yard to push water towards your yard
The important factor to look at here is whether your neighbor made unreasonable or unnatural changes in their property that increased the water flow into yours.
With this, it is important to know the difference between natural and artificial water flow.
- Natural water flow is often caused by the property's topography, climate, and natural conditions of the land.
- Artificial water flow, on the other hand, is a man-made alteration, such as grading or installing drainage systems or gutters.
Property owners are usually not liable for the naturally flowing water onto neighbors' properties. Man-made alterations are also often acceptable. However, if it causes unreasonable or excessive water flow onto your land, you may have a cause of action for damages.
Who is Responsible for Water Runoff?
The answer depends on your local state law. States take three main approaches to handling this legal issue.
Reasonable Use Rule
Most states follow the reasonableness approach. In order to succeed in a lawsuit against a neighbor, you'd need proof that:
- Your neighbor altered their land or property
- The alteration was unreasonable, changing the natural flow of water onto your property
Manmade alterations create stronger legal obligations under the "reasonable use" doctrine. The courts may also consider other factors such as:
- The necessity of the alteration
- The extent of the harm or property damage caused
- Whether there are less harmful alternatives available
- Whether the neighbor installed the artificial water flow negligently
The North Carolina Supreme Court's decision in Pendergrast v. Aiken provides a good example of how courts approach water drainage issues.
The court allowed property owners to make reasonable use of their land even if it would alter the surface water and cause some damage to others. However, this does not give them unlimited rights in draining water onto their neighboring properties.
A cause of action may arise if:
- The water flow caused substantial damage, and
- The diversion of the water is either reckless, intentional, negligent, or a result of abnormally dangerous activity.
Common Enemy Rule
Derived from English common law, this rule expects landowners to protect their property from surface and runoff water. Rainwater and other natural sources of water were considered a common enemy to all landowners. So, landowners can take whatever steps they wish, such as building dikes or water drainage ditches. If surface water runs from your neighbor's land onto your land, you are expected to protect your land from this water.
Many states still follow the common enemy rule. However, most have modified it to make it less strict. Under the modified rules, you may be able to hold your neighbor liable for damage to your property if the neighbor is negligent in making modifications to their property.
Civil Law Rule
The civil law rule, also known as the "natural flow rule," imposes liability on any landowner who changes their land in a way that diverts the natural flow of surface water across the land.
Most states modify civil law rules and allow alterations to property, so long as the modifications are reasonable. Under the modified civil law rule, the landowner, seeing the increased harm, should also take reasonable measures to protect their land from damage due to the increased surface water.
What Damages Must Be Paid?
If you prove that your neighbor is responsible for the water damage that you suffered, you may be able to collect damages for:
- The cost of repairs or replacement of water-damaged property
- The cost of staying at a hotel while your home is uninhabitable because of water damage
- Any medical bills directly related to the water damage, either for physical injury or mental distress
- Punitive damages (if you can show that your neighbor acted maliciously)
You can engage a real estate lawyer to appear before a judge and request a court order that directs your neighbor to fix the problem. Judges are more likely to issue such an order if the fix or repair is minor. Otherwise, they'll order that the defendant compensate you for the repairs.
Insurance Coverage for Water Damage
There are two types of insurance that may cover you if your home or property has been damaged by water: homeowner's insurance and flood insurance. If you experienced water damage from a source within your home, your homeowner's insurance should be able to cover it. In addition, you may be able to collect damages from your neighbor's insurance company.
If the water damage is from an outside source of rising water, homeowner's insurance may not be adequate. It is important that you have adequate insurance coverage in these situations, and you should consider flood insurance if located within a flood zone. The majority of mortgage lenders require flood insurance as a condition of your mortgage. If you let coverage lapse or cancel any insurance premiums, you may be in default on your mortgage terms.
What Should You Do if a Neighbor Is Causing One of These Issues?
If your neighbor is causing water damage-related issues, there are a few steps that you can take.
Document Everything
Take photos and videos of the water damage. It is also helpful to keep detailed notes with dates and times of discovery. Record the water source if identifiable and create an inventory of the items damaged by the water. You can also keep records of all correspondence you made with your neighbor related to this issue.
Talk to Your Neighbor
Talk to your neighbor calmly and explain the problem. Ask them to fix the issue. It is best to put this request in writing and then give them a reasonable time to respond.
For residential areas with a homeowner's association or condominium association, you can also send them a written notification. This is particularly true if, for instance, the condominium units share a plumbing system.
Check Your Insurance
Contact your homeowner's insurance and ask about the coverage for water damage.
Seek Legal Help
If negotiation does not work, consider working with a real estate attorney. They can help review your state's water laws and help you understand your rights. They can also write a formal demand letter, asking your neighbor to take the necessary action.
A real estate attorney can also assist you in calculating damages. This may include repair costs, diminished property value, and lost use of the property.
Legal Advice for Water Damage Disputes
Water damage disputes can be complex and stressful, especially if your neighbor does not want to cooperate. A real estate attorney can help you look at your legal questions and explain your rights under local laws. They'll help you gather evidence and negotiate the case on your behalf. Working with someone who is well-versed in local land and water laws can help resolve your water damage disputes efficiently.
Can I Solve This on My Own or Do I Need an Attorney?
- Many real estate processes can be handled on your own or with the help of a realtor
- Some tenant or neighbor disputes may need the help of local police
- Complex real estate issues (such as construction defects or illegal landlord actions) may need the support of an attorney
Buying or selling a home, facing foreclosure, or mortgage loan issues can benefit from legal expertise. An attorney can offer tailored advice and help prevent common mistakes.
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