On average, listings lease in the $10's per square foot per year. The Peoria submarket is going through a decrease in rates. In the last 3 months, the median rate fell $2 per sqft per year. That's a 11% decrease in rent.
In the last 90 days, 144 listings have been made available, so you'll want to check back regularly for new listings. About 1% of the listings in the Peoria are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,320 sqft. Most buildings in this area are around 2 stories. Most buildings in this area were built in 1971 and are Class C.