On average, listings lease 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 increased $16 per sqft per year. That's a Inf% rise in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Lake Elsinore submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 3 listings have been listed, which means listings 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 1,380 sqft. Most buildings in this area are close to 2 floors. Most buildings in this area were built in 1989 and are Class B.