Most listings are in the $60's per square foot per year. The Cupertino region is experiencing a a boost in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 3% rise in rent.
Compared to the rest of the Silicon Valley market, the Cupertino region has higher rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 10 listings have come on the market, which means office spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 10% of the available space in the Cupertino are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,640 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this area were built in 1984 and are Class B.