Interesting topic. I'm in far SE across the river...pretty much everything is at elevation, you can see it across Sousa bridge and down 295. I'm at 143 feet elev. The block behind me is even higher. I looked up a topographic map of DC. It's basically a bowl, elevation is around the perimeters and flat in the middle (downtown). Lots of trees and green out this way too. Capitol Hill /Navy Yard SE is more 'inland' and similar to downtown. Amazing people think the only elevation is in NW...probably because of climo banding and temp on accumulation forecasts.
Navy Yard is just nonstop concrete and hot as inferno during the summer. I have no idea the thinking when all the green was removed.