LPT is payable by the owner of the property as at 1.5.2013 so if OP is only closing at end May, he is not the owner. Unless Revenue decide that beneficial ownership passes on signing contracts and contract are already signed?
And NPPR?
"Collection of the Non Principal Private Residence Charge for 2013 commenced on the 31st March 2013.
The 2013 charge is based upon the ownership and status of the property on the 31st March 2013. "
So, on becoming the owner of the other property post 1.5.13, I gain the benefit of the other owner having paid the LPT. To the end of the year I presume?
And so long as I manage to sell my current property (the one I'll be moving out of once the new one is done up) before 31st March 2014, I wouldn't be liable to NPPR on that?