Charles Gessford’s houses at 1337-1353 C St. NE were built in 1886. These one-story brick houses, 11 feet wide, were designed and built by Gessford for the rental market. They are two bays wide (a door and a window), with stepped cornices and jack arches. Nearby are other small houses, 12 and 13 feet wide, built in approximately the same time frame.

I found pictures of the interior of one of them (the one with the "green eyebrows") http://www.redfin.com/DC/Washington/1345-C-St-NE-20002/home/9913771 -- pretty tiny at 407 square feet!

Best to view in "Original" because other versions resized by Pbase are decidedly unsharp.
Bad hair day, posted earlier: