Langevin Block was apparently constructed with much patronage. They forgot the bathrooms and space for them.. If one looks down the alley from Metcalfe, on the rear side half way along is a matching addition, projecting outwards, The bathrooms are on each halfway landing off the ornate, central staircase, men on the right half-landing and the women on the left.  Pit stops were a half flight down or up.

Wonderful home for several years..