The typical asking rate per listing is in the $20's per square foot per year. The Orange County region is going through a a boost in rates. In the last 3 months, the median rate went up $5 per sqft per year. That's a 31% increase in rent.
In the last 90 days, 32 listings have been posted online, which means office spaces might be going fast. You'll want to be prepared to make an offer immediately. About 13% of the listings in the Orange County are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 5,000 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this market were built in 1985 and are Class A.