The typical asking rate per listing is in the $20's per square foot per year. The Chandler submarket is going through a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the Phoenix Metropolitan Area market, the Chandler region has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 46 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the listings in the Chandler 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this region are around 2 stories. Most buildings in this area were built in 2006 and are Class B.