Dublin 15 Dublin 15 Dublin 15, also rendered as D15, is a postal district in the suburbs of Dublin in Fingal, Ireland. It is west of the GPO in Dublin city. Dublin 15 covers a large area, rising from the River Liffey to at the townland of "Cloghran" near the "Rosemount Business Park". The district is bordered by County Meath to the west and the north-west and by the "Ratoath Road" to the north-east. The land between the "Ratoath Road / Cappagh Road" and the M2 / N2 road lies in the "Dublin 11" postal district. The townland of Ashtown and the
Waterville, Dublin Waterville, Dublin Waterville () is a modern housing development that forms a remote suburb of Dublin city, within Fingal, Ireland. The developments were built between 2002 - 2008 on the edge of the Abbotstown demense, on the boundary between Blanchardstown and Castleknock. The development lies within the Barony of Castleknock in the historic County Dublin. The area was developed by Granbrind Ltd on land acquired from the Eastern Health Board. The land was previously owned successively by the Barons of Castleknock, Baronets of Abbotstown and Barons Holmpatrick. Historically these lands formed the principal seat in the civil parish and barony