The typical asking rate per listing is in the $30's per square foot per year. The Brentwood submarket is seeing a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 7 listings have been listed, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 357% of the office spaces in the Brentwood 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.
Even though the median size is 2,570 sqft, there are still 0 listings below 2,000 sqft. Most properties in this region are close to 3 floors. Most buildings in this market were built in 1994 and are Class A.