On average, listings lease in the $20's per square foot per year. The Tempe submarket is going through a a boost in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 10% increase in rent.
Compared to the rest of the Phoenix Metropolitan Area market, the Tempe submarket has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 69 listings have been made available, so you'll want to check back regularly for new listings. About 87% of the available space in the Tempe are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 3,420 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this region are close to 2 stories. Most buildings in this region were built in 1987 and are Class B.