The typical asking rate per listing is in the $10's per square foot per year. The Hemet submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 15% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Hemet region has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 2 listings have been made available, which means new listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 100% of the available leases in the Hemet 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 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 460 sqft. Most properties in this market are around 2 floors. Most buildings in this region were built in 2008 and are Class B.