With the new pension freedom rules in the UK, it might be a good idea to leave it there.
If you transferred it to Ireland, you get about €325k for your £250k (the exchange rate would be a reason to transfer), giving you €625k plus whatever contributions and growth over the next 15 years.
If your total Irish funds go over €800,000 you have to pay 20% tax on any lump sum over €200k.
Funds outside of Ireland are excluded from this €800,000 amount, so it may be more efficient in the future to leave it where it is.
Of course, there is also the issue of charges. How much are you paying on your money in the UK and how much here?
Steven
http://www.bluewaterfp.ie (www.bluewaterfp.ie)