On average, listings lease in the $10's per square foot per year. The Tucson submarket is experiencing a decrease in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 13% decline in rent.
Compared to the rest of the Tucson Metropolitan Area market, the Tucson submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 211 listings have come on the market, so you'll want to check back regularly for new listings. About 5% of the listings in the Tucson are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,590 sqft. Most buildings in this area are around 2 stories. Most buildings in this area were built in 1983 and are Class B.