Logan Square is built around the boulevard system — Logan, Kedzie and Humboldt — which is a Chicago landmark district and carries some of the best greystone housing in the city. Off the boulevards the scale changes: two-flats and three-flats, frame cottages and courtyard buildings from roughly 1890 to 1920, much of it converted to condominium since the 1990s.
The greystones are large and almost always altered. A house this size has usually been a two-flat, then apartments, then perhaps a single home again, and each change left something behind in the plan and the pipework.
The interesting work here is undoing rather than adding. Finding the original room inside the alterations, taking out a partition that was never structural, and getting the services to match how the house is actually used now.