Stages of a building project in Italy

The sequence

The six stages, in the order they have to happen

Ivan Nozzi is an Ingegnere — an engineer qualified and registered in Italy — practising in Torrevecchia Teatina (CH), Abruzzo, and listed with the Ordine degli Ingegneri della Provincia di Chieti under no. 2489. A private building project runs through six stages, and the order is not a preference: each stage produces what the next one needs.

Planning
The first stage establishes what you want and whether the building allows it. I collect your brief, then check the permits the comune actually issued for the property, the cadastral plan, and the building as it stands today. I read the local planning rules that apply to the address, tell you what is feasible, and set an order-of-magnitude budget.
Design
Design is the stage that fixes everything downstream. Your brief becomes drawings: dimensioned plans, elevations and sections, a technical report, and settled positions on structure, services and finishes. Where the works touch load-bearing elements, the structural sizing happens here rather than later. This is the last point at which a change costs a redrawn line instead of a demolition.
Permits and appointment
The third stage puts the design in front of two parties: the comune and the building firm. I produce the computo metrico — the priced bill of quantities — and the specification, which together make competing quotes comparable. You choose the firm and sign the building contract. In parallel I file the permit: CILA, SCIA or permesso di costruire, plus the seismic filing for structural work.
Construction
Construction is the stage where the design is defended on site. As direttore dei lavori, the supervising role appointed under Italian law, I check that what is being built matches the filed drawings, keep the firm and the comune aligned, record every decision taken on site in writing, and put each variation through the procedure it requires. Interim valuations govern the payments.
Final checks
Final checks close the project on paper before they close it on site. I verify that the completed works match the design and the documents filed with the authorities, gather the installers' conformity declarations for the services, update the cadastral record where the internal layout changed, and prepare the completion notice. Periodic inspections and maintenance are scheduled at this point.
Handover
Handover transfers both the building and its file to you. You receive the as-built drawings, every filing with its protocol number, the updated cadastral extract and plan, the declarations collected during the works, and the data sheets for the materials and equipment installed. That file is what a future buyer, a bank or the next engineer will ask you for.

Who is involved, and at which stage

A private building project in Italy involves four constant parties and several that appear only at particular stages. Most of what goes wrong on a site comes from unclear boundaries between them rather than from technical difficulty.

The owner. Decides the brief, the spending ceiling, the level of finish and the building firm. Does not decide the technical solutions, but approves them.
The appointed engineer. Prepares the design, files the permits, supervises the works, and checks that what is built matches what was filed.
The comune, that is the municipality, through its Sportello Unico per l'Edilizia. Receives the filings, asks for further documents, and issues the permesso di costruire where one is required.
The regional seismic authority. Receives the structural design. In Abruzzo this applies to almost any work touching load-bearing elements.
The building firm. Carries out the works and, through its own technical staff, runs the site.

Appearing at intervals: the notary, if the project follows a purchase; the bank, if there is a mortgage; the condominio assembly, where the building has common parts; and an architect, where the property is under heritage protection and the works fall within that profession's exclusive competence.

What you decide, and by when

The decisions that belong to the owner are few, and each one has a point after which it starts to cost money.

The spending ceiling: before the design takes shape. A design drawn without a stated limit is nearly always redrawn.
Internal layout and openings: before the permit is filed. After that, every change is a variation, with its own timescale.
The level of finish: before the bill of quantities, because the bill is what turns a preference into a comparable price.
The building firm and the form of contract: after you have quotes priced against the same bill, never before.
Variations: before the affected item of work starts, not while it is under way.

Taken in order, these decisions cost a meeting. Taken late, the same decisions cost a demolition, a variation, or a dispute.

When to bring in the contractor

The building firm belongs at stage three, once the design and the computo metrico exist.

The computo lists every item of work with its quantity. Sent to several firms, it produces quotes you can compare line by line: you can see who has priced the screed or the plaster differently, and ask why. Without it, three quotes are not three prices for the same job; they are three different jobs with three prices.

A firm can be consulted earlier, and sometimes should be, but only on buildability: how the site is reached, how materials are moved, which operations are realistic in that season. The commercial negotiation still belongs after the bill of quantities.

EDIL NOZZI S.R.L. is a construction company registered at the same address as my studio and is a legally separate entity from my professional practice. Awarding the works to it is always your free choice and never a condition of engaging me; comparing quotes remains yours to do.

Where projects come unstuck

Private projects come unstuck for one underlying reason: the order of the stages was reversed.

Works started before the lawful state of the property was verified. A pre-existing discrepancy surfaces with the site already open, when regularising it costs more and completed work may have to be undone.
A firm chosen on a single lump sum. With no bill of quantities there is nothing to compare, and every surprise becomes an extra that is hard to challenge.
Changes agreed verbally on site. If they never reach the drawings, the property ends up differing from what was filed, and the problem resurfaces at the first sale or mortgage application.
Permit timescales underestimated. The clock stops each time the comune asks for further documents, so the completeness of the filing affects the timeline more than the speed of the office.

None of these is unusual, and none of them depends on the works being technically difficult.

The paper trail, stage by stage

Every stage produces documents that stay attached to the property for its whole life, and that someone will eventually ask you to produce.

Planning: the permit history obtained from the comune through a formal records request, the cadastral extract and plan, and a measured survey of the building as it stands.
Design: drawings, the technical report, and, where load-bearing work is involved, the structural calculations.
Permits and appointment: the bill of quantities, the specification, the filed permit with its protocol number, the seismic filing, and the building contract.
Construction: the start-of-works notice, site records, the works account and interim valuations, and any filed variations.
Closing out: the installers' conformity declarations for the services, the cadastral update, the completion notice, and, where the works require it, the certified notice of fitness for use with the attachments each party has to supply.

Where the works change the energy performance of the building, the energy performance certificate (APE) is drawn up by an accredited certifier entered in the regional register. I coordinate its timing and place it in the file, but I do not issue it.

That file is what makes a property saleable without surprises. An incomplete one is what slows a sale down at the notary's desk.

What actually drives the timeline

The duration of a building project in Italy depends mainly on which permit it needs, not on how large the works are.

CILA and SCIA take effect on filing, so works can begin at once, with full responsibility for what has been declared.
The permesso di costruire requires an express decision and a municipal review, and that period is interrupted each time further documents are requested.
Structural works require the filing with the competent regional authority before anything starts on site.
Heritage protection, where it applies, adds the opinion of the protecting authority.
A condominio adds the time needed to convene the assembly and pass a resolution.

Two further variables sit outside any engineer's control: the availability of the firm you choose, and material lead times. That is why the programme is built during the design stage, not during construction.

Sequence

What each stage produces, and who decides

The table sets out the typical sequence for private works on an existing building, including the point at which the building firm enters the process.

Stage	Documents produced	Who decides	When the contractor comes in
Planning	Permit history requested from the comune, cadastral extract and plan, measured survey, first cost bracket	The owner, on the findings I present	Not yet
Design	Plans, elevations, sections, technical report, services layouts, structural sizing	The owner on the brief, me on the technical solutions	Buildability advice only
Permits and appointment	Bill of quantities, specification, CILA / SCIA / permesso di costruire, seismic filing, building contract	The owner chooses the firm and the form of contract	Now: quotes priced against the same bill
Construction	Start-of-works notice, site records, works account and interim valuations, filed variations	The owner on variations, me on conformity with the design	On site, with minuted meetings
Final checks	Installers' conformity declarations, cadastral update, completion notice	I verify, the owner accepts the works	Until the last item is closed out
Handover	Final file: as-built drawings, protocol numbers, cadastral documents, product data sheets	The owner	Statutory warranty period running

Which permit applies depends on the works and on the individual comune's building regulations. The sequence holds even when the stages are short.

Questions

What owners ask most often about the stages

Where does a building project in Italy actually start?

A building project in Italy starts with verifying the legitimate state of the property, not with a drawing. Before any scheme is sketched, I check the permits the comune issued, the cadastral plan, and the building as it stands, because a pre-existing discrepancy changes both what can be done and which permit is needed. Only after that check does a brief become a design.

When should I choose the building firm?

You choose the firm after the design and after the computo metrico, the priced bill of quantities. Sent to several firms, it produces quotes comparable line by line rather than three lump sums built on three different assumptions. Choosing earlier is possible, but you lose the basis for comparison and end up negotiating prices with the works already under way.

What happens if I change my mind once the works have started?

A change decided after work has started is a variation, and it has to be handled on three fronts: technical, administrative and financial. I check whether it fits within the permit already filed or needs a variation, update the drawings, and price the difference before the item of work begins. Changes agreed verbally and never drawn are the most common source of dispute.

Can I run the project from abroad?

The document stages can be handled remotely: filings are submitted electronically, deeds are signed digitally, and updates arrive in writing. The survey, site inspections and supervision require physical presence, and I carry those out in Abruzzo on your behalf. You are welcome to write to me in English or German: enquiries in those languages are read and answered. Drawings and reports are drawn up in Italian, the language that carries legal effect in Italy, and meetings and calls are held in Italian: you can bring someone to interpret, or I can suggest someone locally.

Do small internal works really need all six stages?

Yes, in proportion to the works. Almost nothing on an existing building is free of formalities: significant maintenance needs at least a CILA and, where it affects structural parts, a SCIA together with a structural design filed with the competent regional authority. What changes is the weight of each stage, not the sequence or the documents that stay with the property.

Starting point

The first step is a check, not a drawing

Tell me what you want to do and which property it concerns. I will tell you which stage you are at, what the next one requires, and which checks are worth completing before you commit to anything.

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Stages of a building project

The six stages, in the order they have to happen

Planning

Design

Permits and appointment

Construction

Final checks

Handover