On average, listings lease in the $20's per square foot per year. The Flowing Wells region is seeing a an increase in rates. In the last 3 months, the median rate went up $23 per sqft per year. That's a Inf% rise in rent.
Compared to the rest of the Tucson Metropolitan Area market, the Flowing Wells region has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 1 listings have been listed, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,650 sqft. Most buildings in this market were built in 1974 and are Class C.