here we go again...........Ongar is not Clonsilla, its nearer to Hartstown and Clonee (Littlepace).
In the City, estate agents have to use Thoms directory so if one side of a road is in another townland they must use it and not use the other side of the road which has a "better" selling address.
For example, Shanganagh Road, Drumcondra was changed to Iona Drive by the residents petitioning the local authority because Iona Road, et al, is in Glasnevin but Iona Drive must still be advertised as Drumcondra bacause thats where it is. Look it up on Google Maps.
So builders, developers are not the only ones to change addresses................