I am familiar with the Linton Crest area, though I don't appraise that neighborhood, I appraise other nearby areas. It is located in Bristow, VA which is in Prince William County, VA. Prince William County had one of the biggest run ups in property values in the Washington, DC metro area during the inflation of the real estate bubble and now has had one of the largest decreases in property values since the bubble burst. The median sales price in Prince William County decreased by 43% from November, 2007 to November, 2008. The median sale price in the Bristow, VA zip code of 20136 declined by 24.84% over the same period.
I wonder if the decrease in property values in your neighborhood is caused, either in whole or part, by the smaller houses now being built or whether it is solely caused by the overall severe crash real estate values in PW County and Bristow, VA.
Trust me, if the builders could sell larger and more expensive homes (which in a stable market are more profitable) they would. The fact that the builders are now building smaller homes in your neighborhood is possibly just a symptom of the overall badly declining market in your area and not a significant cause of the decreased values in your neighborhood.
There are also 217 properties in some stage of the foreclosure process or recently in foreclosure in the Bristow, VA zip code according to the data from Realquest. com
Obviously, the large number of foreclosures in the area may well be pushing down values in your area.
If you are going to try to pin the decrease in property values in your neighborhood (in whole or part) on the builders now building smaller homes, you are going to need to have a very well done market study done by a well qualified appraiser for your area.