The typical asking rate per listing is in the $20's per square foot per year. The Arizona submarket is going through a decline in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 3% decrease in rent.
In the last 90 days, 2173 listings have been listed, so you'll want to check back regularly for new listings. About 4% of the listings in the Arizona are subleases, so you will probably have to consider a longer term lease. 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 1,950 sqft. Most buildings in this region are close to 2 stories. Most buildings in this market were built in 1992 and are Class B.