I see that your question has been out there awhile, unanswered. The answer is yes, we have lost value locally across the board in the last couple of years, Quailridge is no exception. There have also been limited sales out there - only 5 since June 2010 - so it is a bit hard to find comparable sales, as the top-end of the market has slowed considerably.
If you are still interested in additional local market information, contact me directly and I am happy to prepare a complimentary market analysis for your home. Chris