Most listings are in the $20's per square foot per year. The West Oakland submarket is going through a a rise in rates. In the last 3 months, the median rate increased $8 per sqft per year. That's a 40% increase in rent.
In the last 90 days, 6 listings have been made available, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. 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 5,370 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are around 2 stories. Most buildings in this market were built in 1985 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Education is the dominant industry in this region. Most of the folk of West Oakland work from home. Commuting around 10 minutes a day is the norm for those who opt to reside in this part of town.