The typical asking rate per listing is in the $20's per square foot per year. The El Paso de Robles submarket is going through a an increase in rates. In the last 3 months, the median rate went up $28 per sqft per year.
In the last 90 days, 14 listings have been posted online, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 43% of the available leases in the El Paso de Robles are subleases, so you might be able to find a shorter term or below market rent. 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 800 sqft. Most properties in this region are around 3 floors. Most buildings in this area were built in 2002 and are Class A.