The typical asking rate per listing is in the $20's per square foot per year. The Five Forks submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $21 per sqft per year.
In the last 90 days, 1 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 300% of the listings in the Five Forks are subleases, so you might be able to find a shorter term or below market rent. 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 2,180 sqft. Most buildings in this region were built in 2015 and are Class A.