Use the Residential Tenancies Board’s official Rent Pressure Zone map or lookup tool and search by the property’s address or Eircode. Check the result against the relevant local authority area and the date your tenancy began, as RPZ designations and rent rules can change over time. An Eircode search is a useful starting point, but it may not resolve every boundary or legal issue. If the result is unclear, contact the RTB or seek advice from a qualified solicitor before relying on it.