Most listings are in the $20's per square foot per year. The Rancho Bernardo submarket is going through a decrease in rates. In the last 3 months, the median rate fell $4 per sqft per year. That's a 12% decrease in rent.
Compared to the rest of the San Diego market, the Rancho Bernardo region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 61 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the listings in the Rancho Bernardo 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 1,550 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this market were built in 1984 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Information is the dominant industry in this area. Commute by bike is the most popular way to get to work amongst Rancho Bernardo folk. Commuting approximately an hour a day is the norm for those who opt to reside in this part of town.