Countries · Ireland

Ireland: how an address is written and what we verify

Every address in the country comes back in the national postal form and is checked against the national address register: street, house number, postcode, coordinates. Here you find how an address is written there, what we check and three before-and-after examples.

Try it on an address API documentation

What an address looks like

House number·before the street (“12 Rue de la Paix”)
Postcode·Eircode; the country prefix in front (D-, F-, CH-) is removed
City·in capitals, in its local name
Country·country line and ISO code, in the reader's language

The house number precedes the street (“12 Dame Street”), and outside the cities the address carries the county (“Co. Cork”); the Eircode has seven characters in two groups (“D02 X285”) and identifies the single delivery point: if you write it correctly it stays yours. Ireland does not publish an open address register: we check against the addresses of property sales registered since 2010, against the commercial premises of the Valuation Office and against OpenStreetMap, with no claim of completeness.

What we verify

Addresses: from the addresses of registered property sales and from other sources, with no claim of completeness · postcodes: 32% · data as of 24 Sep 2026.

Street·exists in the municipality, written in full and in the register's spelling; abbreviations are expanded in the country's language
House number·exists on that street; if the street exists and the number does not, the outcome flags it
Postcode·confirmed or filled in by the register, in the country's format
Coordinates·latitude and longitude of the house number, with the precision declared
Autocomplete·the street completes as you type, from the register; the house number and the postcode come with the selection (API)
WooCommerce · PrestaShop·autocomplete at checkout and order verification with the plugins

Source: Property Services Regulatory Authority (PSRA), Residential Property Price Register; Valuation Office data © Tailte Éireann (CC BY 4.0); © OpenStreetMap contributors · PSI (riuso dell'informazione del settore pubblico); CC BY 4.0; ODbL

Before and after

Three addresses written the way people write them — abbreviated, without postcode, in lower case — and how they come out: public buildings and streets of the city centre, verified down to the house number.

10 dame st, dublin 2 → 10 Dame Street
DUBLIN 2 street written in full · coordinates of the house number · © OpenStreetMap contributors
1 eyre square, galway → 1 Eyre Square
H91 A2XP GALWAY postcode filled in · coordinates of the house number
48 duke street, ATHY → 48 Duke Street
R14 H309 ATHY postcode filled in · coordinates of the house number · © OpenStreetMap contributors

With the API

The same endpoint as every country: country_code is enough. The response carries the address in postal form, the outcome with the changes, and where the register is in service the coordinates, the municipality code and the district. Everything in the API documentation.

curl -X POST https://www.radaraddress.com/api/v1/contact \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"address":"10 dame st","city":"dublin 2","country_code":"IE"}'

Frequently asked questions

Do you also verify addresses that are in a file?

Yes. In batch jobs a column with the country is enough, or the country set for the whole file: every row comes back in the country's postal form, with the outcome beside it and, where the register is in service, verified down to the house number.

What happens if an address is not in the register?

We say so. If the street exists and the house number does not, the outcome flags the house number; if the street is not found in the municipality, the address still comes out in the country's postal form, with the warning. We never invent a plausible address in place of the one that is missing.

Where do the data come from?

From the addresses of residential property sales registered since 2010 (the PSRA's Residential Property Price Register, without coordinates), from the commercial premises of the Valuation Office (Tailte Éireann, CC BY 4.0, with Eircode and coordinates) and from OpenStreetMap (© OpenStreetMap contributors, ODbL): this country does not publish an open address register, and the three sources together do not replace one. Where they do not have the address, it comes out in the country's postal form without being declared wrong.

The other countries

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