A Louisiana neighbor generally may not arrange a roof so that rainwater falls on the adjoining property. Civil Code article 664 states that rule directly. The harder disputes involve a downspout, gutter, driveway, or grading change that collects water and sends it toward the property line.
That is different from rain following the land’s natural slope. Louisiana has separate rules for natural surface drainage, and a claim can turn on whether a man-made feature created, redirected, or concentrated the flow.
If runoff caused an injury or substantial property damage, the firm’s premises-liability practice page explains how control, notice, and proof fit into a Louisiana injury claim. Related published guides discuss utility and property-damage claims and homeowners and renters insurance issues.
The roof rule is unusually direct
Civil Code article 664 says a landowner must fix the roof so rainwater does not fall on a neighbor’s ground. A roof overhang that sheds water across the boundary is the clearest example.
Gutters and downspouts require a closer look at the actual discharge. A downspout at the edge of a lot may collect water from a large roof and release it at one point. A commercial scupper may do the same thing. Removing a gutter, changing a roofline, adding a larger structure, or paving a yard can also change the amount, speed, or location of runoff.
Article 664 establishes the roof-related duty. It does not by itself decide whether the claimant has proved causation, damages, or the right to a particular injunction.
Natural drainage follows different rules
Civil Code article 655 says the lower estate is generally bound to receive surface water that flows naturally from the higher estate, unless an act of man created the flow. Article 656 adds two limits: the lower owner may not prevent the natural flow, and the upper owner may not make the drainage servitude more burdensome.
Those rules create an important factual divide:
- Rain that follows the land’s existing slope usually begins with articles 655 and 656.
- Water that drops from a roof onto the next parcel begins with article 664.
- Water collected or redirected by a gutter, pipe, wall, driveway, fill, or grading work may require all three articles to be considered together.
Civil Code article 667 may also matter when work on one property damages a neighbor or deprives the neighbor of the use of property. A damages claim under that article generally requires proof that the owner knew or should have known the work would cause damage, that reasonable care could have prevented it, and that the owner failed to use reasonable care.
The water path has to be proved
“It never flooded before” may be true, but it does not identify the source. A convincing record shows where the water began, how it moved during a storm, and what it damaged.
Video taken safely during rainfall can show the roof edge, gutter, scupper, or downspout in operation. Wide views help place the discharge in relation to the property line and the damaged area. Dated photographs from before and after roof, paving, or grading work can establish what changed.
A survey may be needed to locate the boundary, structures, drainage features, and elevations. In a larger dispute, a civil engineer, hydrologist, roofer, or drainage professional may be able to distinguish roof runoff from natural slope, street drainage, a blocked public drain, groundwater, or an extreme rain event. Rainfall records, permits, plans, inspection files, moisture readings, repair invoices, and written notice to the owner can complete the timeline.
Document the original condition before moving a downspout or installing a drain, whenever that can be done safely. Corrective work may be necessary to limit damage, but an undocumented change can make the original water path harder to prove.
A practical fix and a legal remedy are not always the same
Many disputes can be resolved by extending a downspout, repairing a gutter, adding appropriate drainage, or changing grading. A written agreement should identify the work, who will perform it, and how the parties will confirm that the correction works.
If the condition continues, a court may be asked for an injunction requiring the discharge to stop or be redirected. A damages claim may seek reasonable repair or mitigation costs, loss of use, and other losses proved in the case. The proper relief depends on the source of the water, the legal duty involved, the damage, and whether the problem is ongoing.
Insurance may help, but coverage is not automatic. Flood, repeated seepage, earth movement, maintenance, notice, and other policy provisions can affect the result. A liability policy and the damaged owner’s property policy also answer different questions. Prompt notice should be given without guessing about which insurer will ultimately pay.
What to do before the next heavy rain
Photograph the roof edge, gutters, downspouts, drains, grading, structures, and visible boundary markers. During the next storm, record the discharge and its path from a safe location. Keep a simple log of dates, rainfall, where water entered or pooled, and any new damage.
Send the property owner a factual written notice with photographs. Avoid accusations that go beyond what the evidence shows. Reasonable temporary measures can be taken to limit additional damage, but do not build a wall or barrier that may push water back onto another property or interfere with natural drainage without professional advice.
Save inspection reports, estimates, receipts, damaged materials when practical, and all insurance communications. Local permits, drainage rules, and code-enforcement records may also matter, especially after new construction or grading work.
When the dispute involves an injury or major loss
Roof and drainage conflicts are often handled by real-estate or property lawyers. When concentrated runoff causes a physical injury, structural damage, or another substantial loss, early documentation can preserve the proof needed to identify the source and responsible parties.
Call Babcock Injury Lawyers at (225) 500-5000 in Baton Rouge or (318) 777-5000 in North Louisiana for a free case review. Representation begins only through a written agreement after a conflict check.
Primary Louisiana authorities
- Civil Code article 664, rain drip from roof.
- Civil Code article 655, natural drainage.
- Civil Code article 656, obligations of the owners.
- Civil Code article 667, limitations on use of property.
Editorial & Legal Accuracy Notice (Louisiana)
This article provides general information about Louisiana law. It is not legal advice and does not create an attorney-client relationship. Drainage disputes depend on elevation, natural flow, construction, servitudes, local ordinances, causation, notice, and expert evidence.