The typical asking rate per listing is in the $50's per square foot per year. The Lafayette region is going through a a boost in rates. In the last 3 months, the median rate rose $13 per sqft per year. That's a 32% increase in rent.
Compared to the rest of the East Bay market, the Lafayette region has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 13 listings have been posted online, which means office spaces might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 15% of the available space in the Lafayette 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,400 sqft. Most buildings in this area are around 3 stories. Most buildings in this market were built in 1981 and are Class B.