Most listings are in the $20's per square foot per year. The Hayward region is experiencing a an increase in rates. In the last 3 months, the median rate increased $0 per sqft per year. That's a 1% increase in rent.
Compared to the rest of the East Bay market, the Hayward submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 10 listings have been listed, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 20% of the available leases in the Hayward are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 4,000 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this region are approximately 1 stories. Most buildings in this region were built in 1981 and are Class A.