We live very close by and know a few people in the Laraghcon estate - there are some bad points I'll point out:
- The sound proofing story above is right, some residents have had this sorted out (ie. those that complained) and some haven't so it's worth asking the estate agent to find out
- The traffic getting out of the estate is pretty heavy at rush hour they have recently opened the road through Laraghcon and at the junction on the Lucan bridge in the evening it can take 30 mins to get out of the estate into the village as there is gridlock on the bridge and nowhere for cars from the estate to go
- There have been issues with parking spaces - check that your house has designated spaces and how many, we were looking at a 3 bed house there that only had 1 designated space, because we knew people in the estate we didn't go for it as they were having parking problems
Other than those few things, our friends like it - it's quiet, has a good residents association, it's clean and you can walk to the village pubs etc. If you are getting the bus/nitelink it's about a 25 min walk from the bus stop. It's in St. Mary's parish and there are schools nearby - although there is a waiting list I know for the Boys NS (no idea about the others).