Water leaks between floors or apartments in Peru: what the law says

The principle: whoever causes the damage pays for it

In Peru, when water from one apartment leaks and damages the one below, the legal starting point isn’t the building’s bylaws or a contract — it’s Article 1969 of the Civil Code, the general rule on extracontractual liability. It states, verbatim, that “aquel que por dolo o culpa causa un daño a otro está obligado a indemnizarlo” (“whoever causes damage to another through intent or fault is obligated to compensate for it”). That means that, if the water that damaged your ceiling, walls, floor, or furniture came from the apartment above, your neighbor is, in principle, legally obligated to repair the damage, with no contract between you required.

The leak doesn’t need to have been intentional. The rule covers both intent (dolo, when someone causes the damage on purpose, rare in these cases) and fault (culpa), which is the typical scenario: leaving a tap running, not fixing a leak in time, badly installing a fixture, or failing to maintain a pipe that eventually bursts.

The burden of proof works in your favor

This is the least-known part of Article 1969, and the part that helps you most: the rule doesn’t just require compensation for intent or fault — it also flips who has to prove what. The text continues: “el descargo por falta de dolo o culpa corresponde a su autor” (“the burden of showing the absence of intent or fault falls on the person who caused it”). In other words, you don’t have to prove your neighbor acted negligently. It’s enough to show the damage and that the water came from their apartment; from there, it’s your neighbor who has to prove they acted with all due care if they want to avoid paying. This reversal of the burden of proof is exactly what makes a claim like this workable without depending on a complex technical investigation into the precise cause of the leak.

When the responsible party isn’t your neighbor, but the Owners’ Association

Not every leak is the responsibility of the person living upstairs. Buildings under the exclusive-and-common-property regime (most apartment buildings and condominiums in Peru) have, in addition to private units, common assets and services managed by the Owners’ Association (Junta de Propietarios). The Law N.° 27157 regulations expressly state that “instalaciones sanitarias […] de uso común” (“shared plumbing installations”) are a common service of the building, just like cleaning or maintaining shared areas.

That draws a practical line for your claim:

• If the source is inside a private apartment (an internal pipe belonging to that unit, a fixture, a washing machine, or an installation that wasn’t maintained), the owner or occupant of that apartment is responsible, under Article 1969.
• If the source is a shared installation (a common water riser running through several floors, a main pipe, the building’s roof), the party responsible for the repair — and, where relevant, for compensating the damage caused — is the Owners’ Association, because it’s a common asset under its administration. You can read more about how the Association and common expenses work on the page about owners’ associations and common expenses in Peru.

In practice, pinning down the exact source may require a plumber, an engineer, or the building administrator to inspect the installation, sometimes with access to the upstairs apartment. If the neighbor refuses to allow that inspection, it’s best to document that refusal in writing and work out next steps with a lawyer or the building administration.

Does the strict-liability rule in Article 1970 apply?

The Civil Code also sets out, in Article 1970, a different regime: strict (objective) liability for using a “bien riesgoso o peligroso” (“risky or dangerous thing”) or carrying out a “riesgosa o peligrosa” (“risky or dangerous”) activity, which requires compensation even without intent or fault. In most ordinary domestic leak cases — a regular water pipe, a sink, a shower — this isn’t an inherently risky thing or activity in the sense courts and legal scholars give that rule, so the regime that normally applies is Article 1969 (intent or fault), not Article 1970. If your case involves something beyond an ordinary domestic installation, it’s worth having a lawyer assess which of the two articles fits best.

The two-year deadline to claim

If the neighbor or the Association won’t respond voluntarily, the next step is a court claim for damages. Article 2001, subsection 4, of the Civil Code sets a two-year limitation period for the “acción indemnizatoria por responsabilidad extracontractual” (the extracontractual-liability compensation claim). After that period, the claim is time-barred and can no longer be pursued in court, so it’s not worth waiting too long to decide on a formal claim if the neighbor or the administration won’t cooperate.

If the upstairs apartment is rented

When the apartment where the leak originated is rented out, liability toward you as the affected neighbor still falls, in principle, on whoever caused the damage through their own conduct — usually the tenant, if the leak came from negligent use of the unit — separately from however the landlord and tenant split responsibility for maintaining the rented unit between themselves. You can review that split on the page about repairs in a rented home in Peru.

Before you file a claim

This page describes the general legal framework for liability between neighbors over water leaks in Peru, but every case depends on specific facts — exactly where the water came from, your building’s bylaws, the size of the damage — that are worth documenting carefully from day one. If the amount at stake is significant, or the neighbor or administration refuse to cooperate, consult a lawyer before starting a court process.