We are about to complete and went on a 2 year rather than 5 year for exactly the reason of eventually moving to Ireland, the main reason we’re in London is she’s in a great position with work.
Keep the Camberwell place and rent in Ireland? My partners parents moved back from the US last year to Galway, it took them better part of a year to find a suitable house, and they were well positioned with cash from selling their house - they got their place by being local. So, my guess is that even without the blockers you have, with the shortage of supply over there you might have a hard time finding what you want anyway?
You’re right it’s a different kettle of fish to over here where Brexit is pushing prices down. I can only imagine full brexit is going to screw Dublin and the suburbs even more with supply moving to address to the higher end for misplaced finance people.