As an agent we cannot comment on a neighborhood's safety. I would look at the DC PD's website or call the local station to see what crimes and types of crimes happen in your neighborhood.
That is a fairly large plat of land, I am sure some developer could find good use of the land, both commercial and residential. Here is a recent article I found when doing a google search, but this did not sound definite: http://www.wjla.com/articles/2011/07/plans-for-walter-reed-have-neighbors-upset-63491.html
Good luck!... more