Many properties in Sicily — from a townhouse in a historic centre to a farmhouse with its own olive grove — come onto the market needing work. Anyone considering a property like that does well to work out beforehand what permission the planned work needs, who should oversee it professionally, and whether the building is actually compliant with what was approved. This guide walks through the main terms and procedures, and explains in outline how Italy's renovation bonuses work.

Ordinary or extraordinary maintenance?

Italian building law distinguishes between manutenzione ordinaria — day-to-day upkeep such as repainting, replacing flooring, or repairing fittings — and manutenzione straordinaria: renewing a bathroom or kitchen, replacing structural elements with equivalent ones, or upgrading technical systems. The former generally needs no permission; the latter usually needs a simple notification to the local council. Exactly where the line falls depends on the individual case and the council in question — working that out in practice is what a geometra or architetto on the ground is for, not a guide.

CILA, SCIA, or a building permit: three tiers

Most extraordinary maintenance can proceed with a CILA (Comunicazione di Inizio Lavori Asseverata) — a notification to the council, endorsed by a qualified professional, that lets work start without a waiting period. Larger interventions — a changed façade, a change of use, or a refurbishment that meaningfully alters the internal layout — usually fall under a SCIA (Segnalazione Certificata di Inizio Attività). A full building permit (permesso di costruire) becomes necessary once volume, mass, or footprint changes — an extension, a loft conversion that adds volume, or a demolition and rebuild. Which tier applies in a given case is decided by the council against the local development plan.

Geometra or architetto: who oversees the work?

For most standard-size residential renovations, a geometra handles the planning, the applications to the council, and — once work is finished — the cadastral update (variazione catastale). Once structural work, seismic reinforcement, or a heritage-protected building is involved, the law requires an architetto's or engineer's signature — their qualification covers calculations a geometra is not licensed to make. Anyone who wants a sense of the scope of work before buying does best to get that read from a local professional.

Planning compliance: a question for before the purchase, not after

The notarial deed for an Italian property must state that the building matches what was actually approved. Where the real building differs from the official plans — a balcony bricked in, an unauthorised loft conversion, a moved interior wall — that blocks the deed until the difference is either undone or regularised through a sanatoria (a retrospective legalisation, historically also called a condono edilizio). This check belongs at the start of a purchase decision, not the end of one: the guide to the buying process shows where it fits in the sequence, and the notary and the geometra are the people who actually carry it out.

The renovation bonuses: what kind of instrument they are

Italy's renovation bonuses are not grants — they are tax credits (detrazioni fiscali): part of the spending on qualifying work reduces the Italian income tax (IRPEF) owed by the person who pays for it, spread over several tax years. That requires enough Italian tax liability to offset it against, a point that matters for a buyer without taxable income in Italy and one a commercialista settles before work begins. The bonuses are claimed through the annual tax return, not applied for in advance — invoices and a dedicated bank transfer (bonifico parlante) document the spending, and the credit spreads over the number of years the programme sets. Tax context sits alongside this in the guide to taxes and IMU.

Superbonus, bonus ristrutturazione, sismabonus, bonus mobili at a glance

The bonus ristrutturazione refunds part of the cost of renovation and maintenance work on a home. The sismabonus rewards work that measurably improves a building's earthquake resistance, at a rate tied to how much the seismic risk class improves. The superbonus was originally built around energy-efficiency upgrades and seismic reinforcement at an unusually high rate; its conditions have been revised and scaled back repeatedly since, and it interacts with the property's energy certificate (APE). The bonus mobili refunds part of the spending on new furniture and appliances following a qualifying renovation, up to a cap the annual budget law resets each year. None of these four gets a current percentage here — they change too often for a number written on this page to stay reliable. The rate, the cap, and the deadline that actually apply come from a commercialista or the Agenzia delle Entrate directly.

Checklist: before renovating a property in Sicily

Five steps, in an order that tends to work well:

Check planning compliance — Before the purchase decision, not after — a geometra or the notary compares the official plans against what is actually built.
Get a rough sense of the scope of work — Ordinary or extraordinary maintenance, a refurbishment, or an extension — a first read that shapes everything that follows.
Establish the required permit tier — CILA, SCIA, or a full building permit — reliable only from a geometra or architetto on the ground.
Discuss bonus eligibility and tax position — With a commercialista, before signing anything with a contractor.
Set up invoices and payment method correctly — In the form each bonus programme actually requires.

Questions specific to renovating and the building bonuses

Can a foreign buyer with no Italian residence use the renovation bonuses?

It depends on whether that person has an Italian income tax liability the credit can be offset against — a question a commercialista settles before work starts.

Does an unauthorised structural change block the notarial deed?

Generally, yes: the deed must state that the building matches what was approved. A discrepancy needs either undoing or a sanatoria before the notary can proceed.

Do the bonuses apply to work started before the ownership transfer?

What generally matters is who pays at the time of payment and what right to the property that person holds at that moment — a commercialista works out the exact attribution case by case.

Does every renovation need an architetto, or is a geometra enough?

A geometra is enough for most standard renovations. Once structural work, seismic reinforcement, or heritage-protected fabric is involved, the law requires an architetto or engineer.

Renovating in Sicily: Permits and Building Bonuses Explained