The two ways an Italian engineering fee is built

An Italian engineering fee is built in one of two ways, and which one applies depends on the type of engagement. Either the fee is proportional to the value of the works, or it is a fixed amount agreed for a single filing.

A proportional fee is the normal structure for design and for site supervision, the two engagements that run alongside a project from beginning to end. The calculation base is the value of the works to be carried out. It is not the market value of the property and it is not the price you are paying for it, which is the single most common misunderstanding among buyers arriving from abroad. Parameters are then applied only to the services actually engaged, and those services add up: architectural design, structural design and site supervision are three separate engagements, each with its own fee.

The reference method most commonly used to build that calculation is the ministerial decree on professional fees (D.M. 17 June 2016). It is not a compulsory tariff, since minimum tariffs were abolished in Italy, but it is a public method. That matters to you for one practical reason: it makes the arithmetic inspectable, so you are entitled to ask on what basis any quotation in front of you was built.

A fixed fee is the normal structure when the object is defined and bounded. A single pratica edilizia, the Italian building filing lodged with the comune; a cadastral update; a technical check on a property before you commit to buying it. The advantage to you is that the amount is known before anything starts and does not move unless the scope itself changes.

  • design and site supervision: a fee proportional to the value of the works;
  • a single building or cadastral filing: a fixed agreed fee;
  • a pre-purchase technical check: a fixed agreed fee;
  • mixed engagements: both structures coexist, but each must be stated separately in the proposal.

What makes the fee go up or down

The size of a technical fee in Italy is driven by a short list of concrete factors, every one of them checkable before you sign, and none of them visible in the photographs of a listing.

  • How complex the intervention is. Replacing a roof, opening an aperture in a load-bearing wall and remodelling a whole floor do not require the same quantity of technical work.
  • Whether the building has a clean planning history. If the permits exist, are legible and match what is actually built, the work goes into the project. If they do not, someone first has to reconstruct what was authorised, and that time is chargeable.
  • Whether structural work is involved. Touching load-bearing elements means calculations, drawings and a filing with the competent office. These are additional services, not a detail inside the architectural design.
  • How much documentation has to be recovered through accesso agli atti, the formal request to inspect and copy the file the comune holds on the building. A well-ordered municipal archive and a filing from the nineteen-sixties that has to be found by hand are not the same job.
  • How many authorities are involved. The comune, the land registry and the office competent for structures each lengthen the path, in proportion to their number rather than to the size of the works.

This is why the first step of any engagement is reading the documents. Before that point any figure is a guess, and the client is always the one who pays for a guess that turns out wrong.

What sits on top of the fee, and is almost always forgotten

The total cost of an Italian building filing is not the same thing as the professional fee: Italian law adds items on top of the fee, and other sums travel through the filing without ever being the professional's income.

The contributo integrativo is a pension-fund levy of 4% which the law requires the professional to charge on the invoice and pass to the professional fund. It is not a mark-up and it does not stay with the professional. IVA, Italian VAT, then applies at the ordinary rate of 22% to the fee increased by that levy. Because these services relate to a property located in Italy, they are as a rule taxed in Italy, so Italian VAT applies even if you live abroad; your own tax adviser should confirm your position.

Separately from the fee, oneri and diritti di segreteria are charges owed to the comune for lodging and processing the filing, and where the intervention triggers them, development contributions are added. Some applications require a marca da bollo, the Italian duty stamp. Obtaining the permit file from the comune carries search and copying charges. None of these sums is the engineer's fee, even when they are paid through the engagement.

So when you compare two quotations, the first thing to check is not the amount but the basis it is expressed on. Two numbers only become comparable once both state whether they include or exclude the 4% levy and 22% VAT, and whether the sums owed to the authorities are inside or outside the figure.

Why the cheapest quotation is frequently the most expensive outcome

The cheapest quotation is frequently the most expensive outcome, because the saving is almost always produced by removing from the engagement exactly the work that prevents problems.

  • The incomplete filing. The office asks for further documents, the file goes back, and the programme slips by weeks or months while the property sits still.
  • The discrepancy found late. The same mismatch between the cadastral plan and what is actually built is a modest cost during negotiation and a serious one when it surfaces at the notary's desk or once the works are open.
  • The site stopped mid-course. A missing permit or a missing filing suspends the contractor, who continues to cost money while nothing is being built.

A quotation that does not list what is excluded is not cheaper. It is less defined. The difference appears later, and it is almost always larger than the amount originally saved.

What to ask of a quotation before you sign it

A technical quotation can only be compared with another one if it states six things, and asking for them in writing is entirely normal with any Italian professional.

  1. Which services are included and, more importantly, which are excluded.
  2. Which documents you are left holding at the end, and in what format.
  3. Whether the amount is stated before or after the 4% levy and 22% VAT.
  4. Which sums are owed to third parties, the comune and the land registry included, and who advances them.
  5. What happens if the scope changes while the work is under way.
  6. How long the quotation stands, and the estimated time for each stage.

If one of those answers is missing, ask for it before you engage anyone. A professional working in an orderly way has no difficulty putting it in writing, because it is information already in hand.

How I put a proposal together

Ivan Nozzi is an Ingegnere, an engineer qualified and registered in Italy with the Ordine degli Ingegneri della Provincia di Chieti, and he works only on a written proposal that you have accepted: nothing begins before you have seen in writing what I would do and what it costs.

The sequence does not vary. First I ask a few questions and read whatever you already hold: the cadastral extract and plan, the building permits if you have them, photographs or the sale listing. Then I send a proposal setting out the object of the engagement, the services included, the services excluded, the documents I will deliver to you, the estimated timing and the agreed fee, marking clearly what is subject to the pension levy and VAT and which sums are instead owed to the authorities.

The details of my professional indemnity cover are disclosed to you at the moment the engagement is entered into, as Italian professional rules require.

If, after reading the documents, I conclude that the engagement falls outside my competence or will not serve the objective you described, I say so and I decline it. This page explains how a technical cost is composed in Italy. It is not tax advice, and it is not a quotation.