The typical asking rate per listing is in the $20's per square foot per year. The Brentwood region is going through a a rise in rates. In the last 3 months, the median rate increased $25 per sqft per year.
In the last 90 days, 10 listings have been made available, which means leases might be going fast. You'll want to be prepared to make an offer immediately. About 50% of the listings in the Brentwood 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.
Even though the median size is 10,000 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this market are close to 3 stories. Most buildings in this market were built in 1965 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Utilities is the dominant industry in this region. Commute by public transit is the most popular way to get to work amongst Brentwood residents. Commuting between 30 and 45 minutes a day is the norm for those who opt to reside in this part of town.