We have just purchased a new build 2 bed in Stansted, we were looking at anywhere between Bishops Stortford and Cambridge. The GF works at Addenbrooks and I work next to Stansted Airport.
We looked at Trumpington Meadows and the various other new build sites around Cambridge direction but the prices were just impossible for us to justify. Which is a shame because I'm also a big fan of Cambridge. Ideally we would have moved to Saffron Walden but nothing of note is being built and so few houses are for sale we stopped looking.
From my experience so far I'm really enjoying the new build, been in 11 weeks. Noise from next door is hardly noticeable (we can only hear when they close the front door) and they have a young baby which I've never heard make a sound. Parking is terrible at the front of the estate, none of the houses seem to have parking and everyone parks on the road, however where we live in the much newer centre of the development they have provided every house with a minimum of two spaces, even our 2 bed has a 2 space drive. Our house came with carpet, shed all the rooms finished.
For house quality it's too early to really say how well it will last, but it's much better than the GF's mums house which is in Cambourne (which is approx 6years old) it's night and day the amount of noise you can hear through the walls. Our developer was Croudace.
So far I would buy a new build again, I know for you're money you can get a cheaper house if you buy older but seeing as we don't need to spend anything and when looking at similar houses and adding up the cost of work needed even when our house drops in value I don't think there is much in it. It would be different if I was willing to do all the DIY myself, but I'm really not.
Looking at our snagging list it only consists of three things at the moment, two of them will cost about £10 to fix and the other being the door peep hole has condensation in it.