On average, listings lease in the $10's per square foot per year. The East Peoria submarket is going through a an increase in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 15 listings have been listed, which means listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 53% of the available space in the East Peoria are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 350 sqft. Most buildings in this region are around 1 stories. Most buildings in this market were built in 1978 and are Class B.