The typical asking rate per listing is in the $20's per square foot per year. The James City County region is going through a an increase in rates. In the last 3 months, the median rate went up $0 per sqft per year. That's a 1% increase in rent.
In the last 90 days, 31 listings have been posted online, which means spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 6% of the available leases in the James City County are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,200 sqft. Most properties in this region are around 1 floors. Most buildings in this area were built in 2000 and are Class A.