I think Laraghcon is a lovely Estate. I looked at a three bedroom mid terrace townhouse there last week. It opened up at €395K, and a bid came in for €410K on the first viewing.
I thought the Estate in general was really well kept and the Estate agent informed me that they have a very high level of owner occupiers. I second redo's view above, as I would be trading up from another estate in Lucan, and I know others who would consider that option too.
The only reason I did not stick a bid in on the house was given it was a townhouse, there was only one parking space officially allocated per house, so I think that would lead to problems for a 2 car family. Also, the back garden although south facing, was even smaller than the normal 30 ft. Would love to buy a 4 bed there, but reckon the prices would be astronomical.
I also think they have a problem with traffic exiting the estate in at peak times, as the lights on the bridge there are a nightmare.