Most listings are in the $20's per square foot per year. The Washington County submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $5 per sqft per year. That's a 22% increase in rent.
In the last 90 days, 19 listings have been posted online, which means spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 2,000 sqft. Most properties in this market are approximately 2 floors. Most buildings in this area were built in 1875 and are Class B.