The typical asking rate per listing is in the $20's per square foot per year. The Prince William County region is going through a a rise in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 5% rise in rent.
In the last 90 days, 101 listings have come on the market, so you'll want to check back regularly for new listings. About 1% of the available space in the Prince William 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 posted, so finding a space for a small business might be tough.
Even though the median size is 3,200 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this market are around 2 stories. Most buildings in this region were built in 2001 and are Class A.