Most listings are in the $20's per square foot per year. The Santa Barbara region is going through a decline in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 11% decline in rent.
In the last 90 days, 212 listings have been listed, so you'll want to check back regularly for new listings. About 6% of the listings in the Santa Barbara 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 2,220 sqft. Most properties in this region are close to 2 stories. Most buildings in this region were built in 1986 and are Class A.