Most listings are in the $10's per square foot per year. The Buellton submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $17 per sqft per year.
In the last 90 days, 2 listings have come on the market, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 250% of the listings in the Buellton are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 970 sqft. Most properties in this region are around 1 floors. Most buildings in this market were built in 2008.