Italian Citizenship Through Your Grandparent — Complete UK Guide

Overview

The route at a glance

After Law 74/2025, the grandparent route is the maximum reach for new jure sanguinis applications. Your Italian-born grandparent → your parent → you. Two generations. This is the most common path for UK applicants.

The process has five phases. Each depends on the previous one. Rushing ahead or doing steps out of order adds months. The realistic total timeline is 1–3 years from first document request to passport in hand.

Five phases, realistic timelines
Phase	Duration	What happens
1. Eligibility check	1–2 weeks	Confirm the chain is unbroken and within the generation limit
2. Document gathering	2–6 months	Obtain, apostille, translate every certificate in the chain
3. Consulate appointment	1–12 months	Secure a Prenotami slot and attend with full document set
4. Comune processing	6–24 months	Italian municipality verifies records and updates civil registry
5. Oath + passport	1–3 months	Attend oath ceremony, register AIRE, book passport appointment

Phase 1

Eligibility check

Before ordering a single certificate, confirm these three things. Getting any of them wrong means wasted time and money on documents you cannot use.

1. The chain is unbroken

Your grandparent must have been an Italian citizen at the time of your parent's birth. If they naturalised as British before your parent was born (and before 15 August 1992), the chain broke. See our Law 74/2025 guide for the full decision tree.

2. Within the generation limit

Grandparent → parent → you = two generations. This is within Law 74/2025's limit. If the Italian-born ancestor is a great-grandparent, the administrative route is blocked for applications filed after 27 March 2025.

3. No female ancestor born before 1948 in the chain

If the chain passes through a woman who had a child before 1 January 1948, the administrative route is blocked. A court case at the Tribunale di Roma is required instead.

Phase 2

Document gathering

This is where most of the time and money goes. Every vital record in the chain needs an original, an FCDO apostille, a certified translation, a notary certification, and a second FCDO apostille on the translation.

See our document checklist for the full list, costs, and common mistakes. The short version:

Request Italian certificates

1–4 weeks

Contact the relevant comune or use ANPR. Birth, marriage, death certificates for your Italian ancestor.

Order UK certificates

1–3 weeks

GRO (England & Wales), NRS (Scotland), or GRONI (Northern Ireland). Full certificates only — not extracts.

Request naturalisation evidence

2–8 weeks

If your grandparent became British: Home Office search (£54). If they didn't: request a letter confirming no naturalisation.

Apostille + translate + notarise

3–6 weeks per batch

Each UK document goes through: FCDO apostille → translation → notary → second FCDO apostille. Do this in the correct order.

Phase 3

Consulate appointment

Your consulate depends on your UK address. London and Manchester use Prenotami. Edinburgh uses email. See our consulates guide for jurisdiction details.

Prenotami slots for citizenship are scarce and fill within minutes. Monitoring the system manually means checking multiple times per day for weeks or months. This is the stage where most people stall.

At the appointment, a consular officer reviews every document. If anything is missing or incorrect, you leave without submitting. There is no partial submission. Everything must be complete.

Phase 4

Comune processing

After submission, the consulate forwards your file to the comune in Italy where your ancestor's birth was registered. The comune cross-references your documents against their civil registry.

This is entirely out of your control. Processing times range from 3 months (small comuni with few pending requests) to 24 months (large cities with backlogs). There is no way to expedite it. The consulate will contact you when the comune confirms.

Phase 5

Oath and passport

When the comune approves your claim, the consulate invites you for the oath of allegiance (giuramento). At the oath:

You read the oath in Italian (a few sentences — they give you the text)
You pay the €600 government fee
You are formally an Italian citizen from that moment

After the oath, register on AIRE (the registry of Italians abroad) through the FAST IT portal. Once AIRE confirms your registration, book a passport appointment through Prenotami (London/Manchester) or email (Edinburgh). The passport itself takes 2–4 weeks to arrive.

Total cost

Budget for a standard case

Estimated costs for a two-generation case (grandparent → parent → you)
Category	Estimate	Notes
UK certificates (×6)	£66–£72	GRO £11 each, NRS £12 each
FCDO apostilles (×12)	£540–£900	£45 standard, £75 premium × 12 (6 documents + 6 translations)
Certified translations (×6)	£240–£480	£40–£80 per page
Notary certifications (×6)	£180–£360	£30–£60 each
Home Office search	£54	If naturalisation evidence needed
Italian certificates	Free–£30	Depends on the comune
Government fee	€600	Paid at oath ceremony
Total (self-managed)	£1,100–£2,000+	Plus time: 80–150 hours of research, admin, waiting

These are 2026 rates. Costs increase with the number of documents in the chain. Divorced and remarried ancestors add documents. Name changes add documents.

FAQ

How long does the entire process take?+

Realistically: 1–3 years. The fastest cases (parent born in Italy, all documents ready, short Prenotami wait) can complete in 8–12 months. The slowest (complex family history, large comune backlog, scarce appointment slots) take 3+ years.

Can I do this without professional help?+

The consulate does not require you to use an intermediary. Some people manage the process themselves. The difficulty is not any single step — it is getting every step right, in the correct order, the first time.

A wrong document sequence means starting over. A short-form certificate instead of a full one means a rejected appointment. A missing second apostille means another 3–6 week round trip to the FCDO. Prenotami slots fill in minutes, and a failed appointment means re-entering that queue.

Most of the cost of doing it alone is not money — it is the months lost to avoidable mistakes. People who have done this process before know where the errors happen and how to avoid them.

Does my grandparent need to be alive?+

No. The claim is based on the unbroken chain of citizenship, not on living relatives. You need your grandparent's birth certificate, marriage certificate, and death certificate (if deceased). The documents prove the chain; the individuals do not need to participate.

What if my grandparent was born in a town that no longer exists?+

Italian comuni have merged, split, and renamed over the past century. The ANPR portal maps old comuni to their current equivalents. If the original comune was absorbed into a larger one, the successor holds the records. Start with ANPR; if that fails, contact the Archivio di Stato for the relevant province.

My parent has never claimed Italian citizenship. Do they need to apply first?+

Not necessarily. In many cases, you can apply directly. Your application demonstrates that your parent inherited citizenship from your grandparent, and you inherited it from your parent. The consulate processes the entire chain at once. However, some consulates prefer the parent to apply first or concurrently. Check with your specific consulate.