Citizenship Application Support Service (CASS)

Information and "one to one" advice service for individuals and families applying for Irish naturalisation in different languages.

We are open five days a week in our Dublin & Cork offices. We provide support for the following: 

  • citizenship/naturalisation application process for adults & minors

  • passport applications

  • letters

  • general enquiries on citizenship, naturalization, eligibility, immigration status, etc.


The Citizenship Application Support Service (CASS) has offices in two cities in Ireland currently:


NCP, The Basement, 44 Lower Gardiner Street, Dublin 1.

Monday - Friday 9.30 am – 4.30 pm

Tel: (01) 535 7238 or (087) 965 4668


NCP Cork, 107 Shandon Street, Cork.

Monday - Friday 9.30 am – 4.30 pm

Tel: (021) 239 9910

Please note, a fee applies for CASS services. You can contact the offices directly for relevant fees. Thank you!


The Citizenship Application Support Service (CASS) does not accept responsibility for direct, indirect, incidental or consequential loss suffered as a result of availing of our service. We do not give any warranty that this service will be error-free and request that applicants check applications to ensure accuracy before submission.


Page Updated 14 February 2019