Two-flats off the Jefferson Park line: party walls and tenant ceilings
Portage Park two-flats put a neighbor on the other side of at least one wall, and that changes where the TV goes. The party wall between units is usually solid masonry, sometimes a double wythe of common brick, which will hold anything you hang on it. It also transmits sound, so we plan the mount and the soundbar together and keep the subwoofer off the shared floor with isolation feet. The front and rear walls in these buildings are brick as well. Interior partitions are the only real frame walls, and in a 1920s two-flat they can be true 2x4s with plaster over lath, spaced anywhere from 14 to 20 inches apart. Second-floor units add a stair problem more than a wall problem: an 80-inch box does not turn a tight Chicago landing easily, and we ask about that when you book so the right crew size shows up. We also confirm with the owner before any anchor goes into a wall shared with another unit. Two-flat installs run 70 to 100 minutes, longer if the run crosses a party wall.