City councillors have backed a proposal to allow Dubliners to vote for a directly elected mayor.
If any one of the other 3 local authorities in the Dublin area block the move, the proposition won't be put to the public.
Dun Laoghaire-Rathdown, South Dublin and Fingal will hold their votes on March 31st.
Lord Mayor Oisin Quinn says there was an unprecedented level of support amongst Dublin city councillors last night: