Real case: a refurbishment with a hidden ten-year risk that AI detected in minutes

Anonymised real case. Full home refurbishment project in the Comunitat Valenciana, audited with the D-LINIEX AI verifier. We have omitted any data that could identify the client.

A refurbishment "doesn't touch the structure"… until it does. It's the phrase that costs the most in the sector. On this project, the D-LINIEX verifier read the complete documentation in a few minutes and raised its hand over the finding that no drawing was shouting about at first glance.

The critical finding

The structural drawings showed elements being intervened on —beams, floor slabs, foundations— without any document in the file evidencing a prior structural assessment of the existing building. In other words: the project assumed the load-bearing capacity of what was already there, without tests on the concrete or characterisation of the ground.

This falls squarely under Art. 17.1.a of the LOE: defects affecting foundations, supports, beams and floor slabs give rise to ten-year liability —a decade— for the signing technician. If differential settlement or a structural crack appears within that period, the absence of the prior assessment is the first argument of the opposing party's expert.

What the AI flagged, ordered by severity

Across the whole file, the verifier returned 14 findings. The critical ones, summarised:

• Structure without prior diagnosis — load assumptions with no documentary support (ten-year liability risk).
• Structural fire resistance (DB-SI 6) without numerical R 30/60/90/120 verification.
• DB-HE / DB-HR divergences — the construction solutions in the report did not match those used to calculate transmittances and acoustic insulation: non-verifiable parameters.
• Energy performance certificate calculated on a floor area different from that of the drawings → kWh/m²·año indicator invalidated.
• Incomplete budget — the waste management and health and safety chapters were missing, which understates the PEM and the municipal ICIO.

Why it matters

None of these points "show up" by leafing through the PDF. They are detected by cross-checking the report, drawings, appendices and budget against each other —exactly what the D-LINIEX AI engine does in a single pass. The technician received a report with each finding, its regulatory article and how to remedy it before submitting for visado.

Important reminder: the verifier is a support tool. It does not sign the project nor replace the competent technician: it gives a thorough "second reading" so the project reaches visado without surprises.

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