Hi David, the answer to your question is likely "No," but there are a few issues to consider before I state that with certainty.
For starters, is this a business that you will be running from the garage? If so, please consult section "17-9-0202 Home Occupations" of the city code, which states "The home occupation and all related activities, including storage, must be conducted completely within the dwelling unit and may not be operated from an accessory structure or garage."
Also
"No home occupation may produce or emit any noise, vibration, smoke, dust, or other particulate matter, odorous matter, heat, humidity, glare, or any other effect that unreasonably interferes with any person’s enjoyment of their residence."
There is also a height restriction on garages, which prevents you from adding a second floor. Basically, the city wants you to use your garage for parking, and maybe a garage-top deck, but that's about it.
You can read the entire city code here:
http://www.amlegal.com/library/il/chicago.shtml
There is one possible work around for you, however. If your garage is an existing structure that is taller than current zoning allows, then you have a chance. For instance, if you have a coach house behind your current house, or a really tall structure that used to be something like a horse stable.
I hope this helps
- Thu Aug 7 2008, 07:33