Development thumb|left|Sackville Street and Gardiner's Mall in the 1750s|alt=Map of a street flanked with houses on either side, 1750s Drogheda Street O'Connell Street evolved from the earlier 17th-century Drogheda Street, laid out by Henry Moore, 1st Earl of Drogheda. It was a third of the width of the present-day O'Connell Street, located on the site of the modern eastern carriageway and extending from Parnell Street to the junction with Abbey Street.
Dev.elopment ,thumb|left|Sackville Street and Gardiner's Mall in the 175,0s|alt=Map of a street flanked with houses on either side, 1750s Drogheda Street O'Connell Street evolved from the earlier 17th-century Drogheda Street laid out by Henry Moore 1st Earl of Drogheda. It was a third of the width of the present-day O'Connell Street, located on the site of the modern eastern carriageway and extending from Parnell Street to the junction with Abbey Street