The typical asking rate per listing is in the $20's per square foot per year. The Rancho Bernardo submarket is going through a an increase in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the San Diego market, the Rancho Bernardo region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 61 listings have come on the market, so you'll want to check back regularly for new listings. About 3% of the office spaces in the Rancho Bernardo 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 1,550 sqft. Most buildings in this area are close to 2 stories. Most buildings in this area 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 region. Commute by bike is the most popular way to get to work amongst Rancho Bernardo residents. Commuting close to an hour a day is the norm for those who opt to reside in this part of town.