On average, listings lease in the $20's per square foot per year. The Richmond region is experiencing a a boost in rates. In the last 3 months, the median rate went up $26 per sqft per year.
In the last 90 days, 3 listings have been posted online, which means office spaces most likley are leasing quickly. 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 2,000 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this area were built in 1982 and are Class B.