The typical asking rate per listing is in the $10's per square foot per year. The Casas Adobes region is going through a decrease in rates. In the last 3 months, the median rate fell $9 per sqft per year. That's a 35% decline in rent.
Compared to the rest of the Tucson Metropolitan Area market, the Casas Adobes submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 8 listings have been listed, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 75% of the office spaces in the Casas Adobes are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,490 sqft. Most properties in this area are close to 1 stories. Most buildings in this region were built in 2002 and are Class B.