I live near NASA HQ and know someone who used to live near the place you're looking at. You can look at crime maps--that's one of the areas of DC that has the most gun crime. Not that there isn't any in SW, or Northwest for that matter!
I would not count on much quick appreciation that far from the metro. If you want to live East of the River, I'd look at something like
https://www.redfin.com/DC/Washington/910-Savannah-St-SE-20032/home/10164166 or
https://www.redfin.com/DC/Washington/1922-Valley-Ter-SE-20032/home/10162460, or go into MD like
https://www.redfin.com/MD/Hillcrest-Heights/2407-Fairhill-Dr-20746/home/10628675
If you want to live closer to NASA something like this could be great if you can make the co-op fee work
https://www.redfin.com/DC/Washington-D-C/359-O-St-SW-20024/home/174939986 (it does include property taxes and utilities so that helps, and I bet you can get it for under list). Or there are a lot of 2-bedroom condos and co-ops if that works for you.