The typical asking rate per listing is in the $20's per square foot per year. The Casa Grande region is going through a a rise in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 17% rise in rent.
Compared to the rest of the Phoenix Metropolitan Area market, the Casa Grande submarket has higher rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 3 listings have been posted online, 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 770 sqft. Most buildings in this area are approximately 1 stories. Most buildings in this market were built in 2003 and are Class B.