Most listings are in the $0's per square foot per year. The Casa Grande region is going through a decrease in rates. In the last 3 months, the median rate decreased $27 per sqft per year. That's a 100% decrease in rent.
In the last 90 days, 6 listings have been listed, which means leases might be going fast. 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 2,030 sqft. Most properties in this area are approximately 1 stories. Most buildings in this market were built in 2003 and are Class B.