Most listings are in the $10's per square foot per year. The Lake Elsinore region is seeing a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 26% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Lake Elsinore region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 16 listings have come on the market, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 1,290 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this market were built in 1989 and are Class B.