Most listings are in the $20's per square foot per year. The Orange County submarket is seeing a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 6% decline in rent.
In the last 90 days, 425 listings have been posted online, so you'll want to check back regularly for new listings. About 4% of the office spaces in the Orange County are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,930 sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 1986 and are Class A.