The typical asking rate per listing is in the $10's per square foot per year. The Peoria submarket is going through a a rise in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 7% increase in rent.
In the last 90 days, 159 listings have come on the market, so you'll want to check back regularly for new listings. About 33% of the office spaces in the Peoria are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,700 sqft. Most properties in this area are around 2 stories. Most buildings in this market were built in 1972 and are Class C.