Hi Amanda,
Ah yes, Paraic McKevitt is a nephew of Turlough McKevitt and cousin of James. I'm led to believe Paraic would have trained in Turlough McKevitts office years ago before going out on his own.
I think I know the house in Blackrock you are referring to. Is this the render and brick property just north of the old square, a house which is kind of single storey to the front but two storey to the back? If so, it is a lovely property. Paraic would have also designed the former Oystercatcher in Carlingford.