I guess a parking lot landed on this. Then a Convention Center. Mt. Vernon Square 1968?

This is supposed to be 8th Street NW looking north. Now, in the background you will see the top of Immaculate Conception Church. However, the little house in the middle of the block with the porch looks, awfully familiar. It makes me think this was mislabeled.

If it wasn’t then this is in Mount Vernon Square and was leveled to make a parking lot. Which then became the current Convention Center.

Any thoughts?