It looks like some of the empty retail spots in the residential buildings around 14th and Florida are filling in: Knotstandard, a custom menswear shop, is now open in the Solea condo building on the northwest corner.
Despite looking and sounding pretty fancy, it doesn't seem to be crazy expensive: the website lists shirts for $59, suits for $346 and such -- not cheap, but not as expensive as I'd expect a custom clothing store. The store has 6 locations including DC, which it calls "showrooms," including one in Dubai.
Nice to see more small retail coming in. It seems like there's a little men's clothing cluster around that corner, with Federal, Palace 5ive and now Knotstandard all right there. I'll have to stop in next time I'm looking for a shirt for work. (Forgive my cameraphone pics from a moving vehicle.)