Inheriting a property with unauthorized construction: what to do

Inheriting a home should be a natural, almost physiological, transition. Yet, more and more often, those who receive a property find themselves faced with a doubt they hadn't anticipated: "Is this irregularity a building violation? And if so, what does it mean for me?" The truth is that, in the world of historic Italian buildings, what appears irregular doesn't always stem from an offense. Indeed, it very often arises from a misunderstanding, such as a modern reading of documents that aren't modern.

The most emblematic case concerns the old land registry records, those produced starting in the 1930s with the establishment of the New Urban Building Registry. These documents are now viewed with a technical eye, forgetting that they were drawn up for fiscal, not construction, purposes, and with tools that had nothing to do with today's precision. This is where the short circuit begins. A difference between the period floor plan and the current state of the property is interpreted as evidence of abuse. But this isn't the case. Not necessarily.

When the floor plan doesn't tell the truth

The land registry records of the 1930s and 1940s were often compiled by the owner himself, with summary surveys, on graph paper, with a more "geometric" than "architectural" approach. The result? Perfectly square rooms that in reality were never so. Walls straightened for convenience. Windows drawn "by eye." Simplified wall thicknesses. Standardized internal shapes.

Anyone who inherits a property today and compares that representation with the actual state of the place risks seeing abuse where there is only a historical graphic error. And this is especially true in historic centers, where construction has never been an exercise in Euclidean geometry with sloping walls, out-of-square walls, and physiological irregularities. All characteristics that a cadastral plan had no obligation to faithfully reflect.

The Land Registry does not certify building compliance

Another recurring misunderstanding concerns the role of the Land Registry. The Land Registry was not created to verify building compliance, but to assign an income. It is not a building permit, it is not an authorization, it is not proof of compliance. And it's not even proof of abuse.

However, it can be a clue, a useful piece in reconstructing the Legitimate Status of the property, especially when the building was constructed during a period when no permit was required, or when the original building permit has been lost in the municipal archives.

In these cases, the cadastral plan can have supplementary value. But it remains a piece of the puzzle, not the definitive picture.

Laws that can save illegal building

The regulations that must be taken into consideration are Royal Decree-Law 652/39 and Bridge Law no. 765/1967. When there is a building violation, whether it's a missing wall or an entire apartment built without apparent authorization, it's important to understand when the violation occurred. If the violation is minor, it's best to proceed with an amnesty or restore it to its original state. If the violation is more serious (such as a property built on land), it's necessary to investigate the year of construction and the relevant regulations. Therefore, it's not always necessary to renounce an inheritance, acknowledge the presence of an illegal building, or even proceed with the demolition of the property.

What should someone who inherits a property with alleged non-conformity actually do?

The answer isn't "rush to an amnesty." The answer is: reconstruct the property's history. This can be done with the help of professionals, such as those at the Agenzia delle Successioni.

This work begins with documents, not assumptions. We analyze building permits, urban planning documents, municipal archives, any subsequent land registry documents, notarial deeds, and the building's construction history. Everything is compared with the current state of the site. Only in this way can we determine whether the discrepancy is:

• an original graphic error,
• a subsequent building modification,
• a legitimate intervention that has not yet been updated,
• an actually illegal transformation.

What if the discrepancy is real?

Even in this case, the heir should not panic. The responsibility for the violation is administrative and concerns the property, not the person. The heir does not "inherit the fault," he inherits the need to regularize.

If the intervention is remediable, a regularization can be carried out. If not, you can also consider renouncement of inheritance if it is the only asset received as an inheritance. But all this comes after, never before, the reconstruction of the Legitimate Status.

This is why it is important to start with a consultation with the technicians at Agenzia delle Successioni to assess whether or not a property has a presumed discrepancy. A floor plan is a document that must be interpreted in its context, with caution and method.