On average, listings lease in the $10's per square foot per year. The Mesa submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 9% decline in rent.
Compared to the rest of the Phoenix Metropolitan Area market, the Mesa submarket has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 154 listings have been made available, so you'll want to check back regularly for new listings. About 1% of the available space in the Mesa 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,840 sqft. Most properties in this area are around 1 floors. Most buildings in this area were built in 1992 and are Class B.