On average, listings lease in the $20's per square foot per year. The Lake Forest submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 12% rise in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Lake Forest submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 11 listings have been listed, which means spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 9% of the available leases in the Lake Forest are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,730 sqft. Most properties in this market are close to 2 floors. Most buildings in this area were built in 1981 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Education is the dominant industry in this area. Most of the folk of Lake Forest work from home. Commuting approximately 10 minutes a day is the norm for those who opt to reside in this part of town.