Re: What tax rules apply ?
Are you sure it's your PPR? Both you and your wife, not just you!
A married couple can only have one PPR.
This is a complex situation so professional advise would be needed to help mitigate costs.
It's a problem to the no CGT rule.
If your PPR is the NI property, you should have paid SD levels on the Ire home at investor levels and will pay CGT on the profit from the sale of the Irish property (a married couple can only have 1 ppr, so your wife also pays for her share).
Had it been your PPR you would have been exempt.