Find out about the most Frequently Asked Questions on the project

Welcome to Greater Dublin Drainage

Greater Dublin Drainage (GDD) is a project to develop a new regional wastewater treatment facility for greater Dublin.

A sites assessment and selection process has been completed and has identified the preferred solution as being:

  • an underground orbital sewer from Blanchardstown to Clonshagh (Clonshaugh) and two new pumping stations;
  • a new wastewater treatment facility at Clonshagh (Clonshaugh);
  • an outfall pipe from the wastewater treatment facility discharging to the Irish Sea.
This project is needed in order to meet projected demand for wastewater treatment and to facilitate the continued growth of greater Dublin (including Dublin and parts of Kildare, Meath and Wicklow).

Irish Water is now progressing the environmental studies required to prepare a planning application for the GDD project.

It is anticipated that an application for planning consent will be made to the independent planning authority, An Bord Pleanála, in 2018.

Click here for more information on the GDD project.

Latest News

Irish Water begins site selection process for new Regional Biosolids Storage Facility for greater Dublin

Thursday, 2nd February 2017: Irish Water has announced an important new project to develop a Regional Biosolids Storage Facility for greater Dublin including parts of Kildare, Meath and Wicklow. The new storage facility will be part of the upgraded wastewater … Continue reading

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