Most listings are in the $10's per square foot per year. The Washington County submarket 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 7% increase in rent.
In the last 90 days, 66 listings have been posted online, so you'll want to check back regularly for new listings. About 2% of the available space in the Washington County are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,510 sqft. Most properties in this market are around 2 floors. Most buildings in this area were built in 1998 and are Class B.