On average, listings lease in the $20's per square foot per year. The Tempe region is experiencing a a rise in rates. In the last 3 months, the median rate increased $22 per sqft per year.
Compared to the rest of the Phoenix Metropolitan Area market, the Tempe submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 69 listings have been made available, so you'll want to check back regularly for new listings. About 116% of the listings in the Tempe 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,720 sqft. Most buildings in this area are close to 2 stories. Most buildings in this area were built in 1986 and are Class B.