Roscoe Village was built for the people who worked in the factories along the river: frame and brick workers’ cottages and two-flats from the 1890s through the 1920s, on twenty-five-foot lots. It is denser and more modest than Lincoln Park, and it has been steadily upgraded rather than comprehensively rebuilt.
The characteristic building is the raised cottage. At some point — often the 1920s, sometimes much later — the house was jacked up and a new basement built beneath it. That single fact explains most of what we find: services spliced together from three eras, floor levels that do not line up between front and back, and a bathroom that was fitted into whatever space was left over.
None of that is a problem, but it does mean the survey matters. We look at the basement ceiling before we draw anything, because in a raised cottage the drain route is the thing that decides the layout, and it is almost never where the plan would suggest.