Tenancy disputes in Dublin are generally handled through the Residential Tenancies Board (RTB), which covers most private residential tenancies and does not operate a separate Dublin process. You can usually seek mediation, which is voluntary and confidential, or adjudication, where an independent adjudicator considers the evidence. Keep the tenancy agreement, rent records, notices, photographs and relevant messages, and follow the RTB’s application deadlines and procedures. The outcome depends on the facts and evidence in the individual case, so consider getting advice from a solicitor or a tenant-support service if the issue is complex.