The typical asking rate per listing is in the $50's per square foot per year. The Corte Madera submarket is going through a a boost in rates. In the last 3 months, the median rate rose $4 per sqft per year. That's a 8% increase in rent.
Compared to the rest of the Bay Area market, the Corte Madera region has greater rates, and you'll need to pay a premium to be in this hot region.
In the last 90 days, 4 listings have been made available, which means leases might be going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,650 sqft. Most buildings in this market are close to 2 floors. Most buildings in this region were built in 1980 and are Class A.