Work has begun on the Temple Bar Area Improvement Scheme, which includes the removal of the steps in the central part of the square.
The total cost of the project is €5m and the work is expected to take 18 months to complete.
Temple Bar Street will be reconstructed with granite footpaths and the traditional Temple Bar cobbled carriageways.
The Scheme covers approximately 2,400m² and encompasses Crown Alley, Temple Bar Square, Temple Bar Street and parts of Fownes Street Lower and Cope Street.
Lord Mayor of Dublin Caroline Conroy says: "It’s great to see this work commencing. This area attracts approximately 60,000 pedestrians per day.
"Together with the ongoing works on Liffey Street, the decision to make Capel Street traffic-free and the plans for College Green, this is another important step in putting pedestrians at the heart of city life."
Dermot Collins from Dublin City Council’s Roads Section says: "This scheme will transform Temple Bar Square, including parts of Crown Alley and Fownes Street Lower. The construction works will create a single surface finish between the buildings on each side of the Square, including removal of the steps on the central portion of the Square.
"The construction works will also include levelling the height differential between kerbs and carriageway. The Scheme design will incorporate tree planting, new bench seating and a new public lighting system."
Temple Bar Street, located between Fownes Street Lower and Temple Lane South and Crown Alley will be reconstructed with granite footpaths and the traditional Temple Bar cobbled carriageways.