Locals-only rules. Some local authorities make it a pre-requisite that you be from the local area or work within it. European Union rules should see this requirement removedin the coming year.
Council fees. Check how much your local authority will charge you for the upkeep of roads and other amenities related to your building new. Water connection fees can be prohibitive in some areas also. That said Irish Water is about to introduce a flat feefor water connections across ROI.