The typical asking rate per listing is in the $10's per square foot per year. The Old Irving Park submarket is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 8% decline in rent.
In the last 90 days, 6 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,100 sqft. Most properties in this area are around 2 floors. Most buildings in this region were built in 1972 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Waste services is the dominant industry in this market. Most of the residents of Old Irving Park work from home. Commuting around an hour and a half a day is the norm for those who opt to reside in this part of town.