Most listings are in the $20's per square foot per year. The Half Moon Bay submarket is going through a a rise in rates. In the last 3 months, the median rate rose $29 per sqft per year. That's a Inf% increase in rent.
Compared to the rest of the Silicon Valley market, the Half Moon Bay submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 5 listings have been made available, which means spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 20% of the office spaces in the Half Moon Bay 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 available, so finding a space for a small business might be tough.
Even though the median size is 5,800 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this area are close to 2 floors. Most buildings in this region were built in 1997 and are Class B.