Pre-Purchase Technical Survey in Sicily: What to Commission Before You Sign

By Arch. Fabio Costanzo, Studio 4e · Updated: March 2026

There is no direct equivalent of the UK RICS HomeBuyer Report or the US home inspection in Italy. Italian law does not require sellers to commission a structural survey before a sale. What Italian law does require — and what the savviest buyers commission independently — is a set of specific technical checks that reveal problems a general inspection would miss. Here is what they are and why they matter.

Why the Italian notary does not protect you technically

The Italian notary (notaio) is responsible for the legal validity of the deed — verifying that the seller has title, that there are no mortgages, charges or seizures on the property, and that the sale complies with tax law. The notary does not inspect the physical state of the building, does not verify whether the plans filed with the municipality match what was built, and does not check whether works carried out over the decades had the required permits. These are technical matters outside the notary's remit. The buyer who relies solely on the notaio for protection is leaving significant risk unexamined.

The five technical checks that actually matter

1. Stato legittimo (legal state verification)

The stato legittimo is the legally authorised state of the building — the sum of all permits, titles and authorisations that document what has been legally built or modified over the life of the property. Since the 2020 Simplification Law (D.L. 76/2020), Italian law requires that the stato legittimo be declared in any sale deed.

Verifying the stato legittimo in practice means: obtaining all the original building permits from the municipal archive; comparing them to what is currently built; identifying any discrepancies (works done without permit, room layouts changed, volumes added). In Sicily, where the municipal archives are often incomplete and the rate of unauthorised works is among the highest in Italy, this check is not optional — it is essential. Studio 4e performs this verification as part of its pre-purchase due diligence service.

2. Catasto comparison (cadastral plan vs. as-built)

The Catasto is Italy's land and building registry. The floor plans registered in the Catasto should match the as-built state of the property — but they frequently do not. Common divergences in Sicilian properties:

• Walls moved or removed, not updated in the Catasto for decades
• Rooms converted to different uses (e.g., a terrace converted to a habitable room)
• Extensions added — even small ones — not registered
• Merging of two apartments without updating the cadastral registration

A divergence between the Catasto and the actual state does not automatically block a sale, but it must be resolved before or simultaneously with the deed. The resolution requires a DOCFA filing (cadastral update), and if the discrepancy reflects unauthorised works, those works must also be regularised or their non-regularisability disclosed. Buying a property with unresolved Catasto divergences means inheriting the obligation to resolve them — with costs the seller should bear but often does not.

3. Structural inspection

Italian sellers are not required to provide a structural survey. On older properties — and Sicily has a high proportion of buildings from the 1930s to 1970s — the structural state is often unknown even to the owner. A structural inspection by an engineer covers:

• Visual inspection of the main structural elements (columns, beams, slabs, walls)
• Evidence of cracking patterns (structural vs. superficial)
• Signs of moisture ingress, corrosion of reinforcement bars, concrete deterioration
• Assessment of seismic adequacy (Sicily is seismic zone 2 — most of the island)

A visual-only structural inspection costs €500–1,500. A destructive investigation with core samples and material tests costs €2,000–5,000. For properties with visible cracking, the destructive investigation is not optional. The cost is trivial compared to the cost of discovering structural problems after purchase.

4. Energy performance certificate (APE)

The Attestato di Prestazione Energetica is legally required for any sale or rental. Sellers must provide one. However, many APEs in circulation were issued years ago when the property was in better condition, or were obtained with minimum effort and may not reflect the true energy class. A fresh APE by an independent professional gives you an accurate picture of what renovation investment the property's energy systems will require — and helps estimate running costs.

5. Asbestos survey (if built before 1992)

Asbestos (amianto) was used extensively in Italian construction until it was banned in 1992. Properties built or renovated before that date may contain asbestos in roof sheets (eternit), pipe insulation, floor tiles or boiler insulation. An asbestos survey (censimento amianto) by a certified firm identifies the presence, type and risk level of any asbestos. If present, the buyer takes on the obligation to manage it — the cost of safe removal and disposal can be significant.

What a pre-purchase technical review by Studio 4e covers

Studio 4e offers a structured pre-purchase technical review for international clients. It includes:

• Municipal archive research to retrieve all available permits and titles
• On-site visit and as-built survey of the property
• Catasto comparison and discrepancy identification
• Stato legittimo preliminary assessment (what is regular, what is not, what is regularisable)
• Visual structural assessment
• Written report in English with specific findings, risks and estimated costs to resolve any issues

The report is designed to be actionable: each finding comes with a practical recommendation — whether to proceed, negotiate a price reduction, require the seller to regularise before signing, or walk away.

At what stage to commission the technical review

The ideal moment is after agreeing on a price in principle but before signing the preliminary contract (compromesso). The preliminary contract is legally binding once signed. If the technical review reveals problems after signing, your options are limited — you may need the seller's cooperation to withdraw, or face losing your deposit.

Insert a clear technical due diligence condition into any preliminary contract: the deposit is refundable if the technical review reveals issues that the seller cannot or will not remedy. A good Italian real estate lawyer (avvocato) can draft this clause; Studio 4e can explain the technical findings that would trigger it.