Cicero and Berwyn sit directly against the city's western edge, but they behave differently from the Chicago neighborhoods next to them — mostly because of what is built there and who buys it.
The stock
Brick bungalows and Georgians, largely 1920s to 1950s, generally structurally sound. Solid masonry, full basements, and layouts that have aged reasonably well.
Compared with the pre-1930 frame and two-flat stock on the West Side, these buildings tend to need moderate rather than full-gut work.
The exit is retail
This is the important difference. There is a genuine owner-occupant buyer pool in Berwyn in particular, which means a finished property can be sold to someone who will live in it.
That changes what your renovation has to achieve. Finish quality carries further here than in markets where the exit is another investor, and under-specifying the work costs you at resale.
Cicero's own rules
Cicero maintains inspection and rental licensing requirements of its own, separate from Chicago's. They are not onerous but they are real, and discovering them after you have planned a scope is inconvenient.
Confirm what applies to your specific use — owner-occupied resale and rental are treated differently.
Who these markets suit
Flippers who want predictable structures and a real retail exit, and buy-and-hold buyers who want stable rental demand without the heavier capital items common in older city stock.
They sit slightly higher in the price band than the deeper-discount South and West Side markets, which is the trade for that predictability.