The typical asking rate per listing is in the $20's per square foot per year. The Peoria region is seeing a a rise in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 8% increase in rent.
Compared to the rest of the Phoenix Metropolitan Area market, the Peoria region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 17 listings have come on the market, which means listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 170 sqft. Most buildings in this region are approximately 1 floors. Most buildings in this market were built in 2006 and are Class B.