Hi Ken

I've been looking into this for a while now as I too thought that the estate/road name was a little far from the tomb to be relevent, but from what I've gathered it does refer to Kiltiernan tomb. No other has ever been noted in the immediate vicinity and sometimes people do get carried away with naming places.

There is a 'Dolmen House' 2 miles from Legannany. The Dolmen Hotel in Carlow is 6 miles from the Browne's Hill tomb. etc ...