Most listings are in the $10's per square foot per year. The Lake Forest region is experiencing a decline in rates. In the last 3 months, the median rate fell $9 per sqft per year. That's a 33% decrease in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Lake Forest submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 29 listings have been posted online, which means leases are probably going fast. 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 1,610 sqft. Most properties in this market are close to 2 stories. Most buildings in this region were built in 1999 and are Class B.