Paid: 138 k
Built: 1930?? (not sure, but there was a crappy renovation to the building done in 1989)
Bought: 2000
Zip: 20009 (Adams Morgan)
400k today
Don't live there anymore, but still own it.
My current residence (not in DC):
Paid: 325k
Built: 1918
Bought 2009
Worth today: 325k