In the last 90 days, 2 listings have been made available, which means new availabilities most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 150% of the available space in the Richmond are subleases, so you might be able to snag a great spot on a short term. 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 1,020 sqft. Most buildings in this area are around 1 floors. Most buildings in this market were built in 1996 and are Class B.