Jeff is correct, lots of cost associated with incorporating it correctly into older units. Washers tend to discharge a high volume of water at a very fast rate. This can overwhelm most older systems.
There are MANY units for rent in Lincoln Park that have an in-unit washer and dryer that are available. However, this added amenity does command a higher rent. I would recommend that you engage a real estate agent as their services are free (landlords pay their commission) and they can provide lists of properties that have an in-unit washer and dryer. Realtors can also find properties with certain amenities (pool, doorman, fitness room) or that allow pets.
I hope this helps.
If you give me your search criteria, i.e., # of 'bdrms, # of baths, budget, etc... I can run a quick search utilizing the W/D in unit feature.
You should know that some of the reasons condo buildings (or any rental for that matter) don't allow W/D in units is overflow hazard, water bill expense, lack of w/d hook-up, electrical power, no gas lines, etc..
Let me know if you'd like for me to run a search on your behalf.
Evelyn S. Fred
Baird & Warner