Most listings are in the $20's per square foot per year. The Fresno submarket is going through a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 10% decrease in rent.
Compared to the rest of the Fresno market, the Fresno submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 233 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the listings in the Fresno 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 1,800 sqft. Most buildings in this area are around 1 stories. Most buildings in this market were built in 1981 and are Class B.