Most listings are in the $10's per square foot per year. The Pima County submarket is experiencing a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 13% decline in rent.
In the last 90 days, 259 listings have come on the market, so you'll want to check back regularly for new listings. About 5% of the listings in the Pima County are subleases, so you will probably have to focus your search on direct office leases. 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 1,640 sqft. Most buildings in this area are approximately 2 floors. Most buildings in this market were built in 1986 and are Class B.