What is your source for the eircodes on the houses in Kilcarn Woods? You may not copy eircodes from eircode finder into OSM, because their data is copyrighted and not compatible with the open data license used on OpenStreetMap. Unless you found them displayed on each individual house/ gate/ fence or talked to each individual house owner (in that case, add `source:addr:postcode` to each individual house), please delete them.