Persimmon lied about where the council housing will be

[Jett]

I bought my flat in May 2008 and at the time of the sales meeting (!) I was advised that a certain area was to be for council housing and the two blocks of flats opposite mine (there are four blocks around the roundabout) would be in front of the council houses. Now I have recently found out that before those last two blocks of flats were build they were all sold....for council housing which goes against what Persimmon originally advised me (not that I have an issue with council housing) and now some (only some) of the people are undesirables and are causing lots of issues/noise/constant visits by police vans at all times of the day and night - making it unpleasant to live in that area. We've also had some children from the council hoses in our block trying to jam their fingers into postboxes trying to get our post out!!!

I'm really not sure what what I can do about this and where I stand as Persimmon have gone against the original info when selling me the property, and part of the reason I bought the flat where I did was because it was not going to be next to/overlook by the council housing. Can I look to paying back less of the 25% deposit the initially put in due to them acting outside of the original plans as it's having a negative impact on me?

Please help!