The typical asking rate per listing is in the $20's per square foot per year. The Battle Ground submarket is seeing a a rise in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 14% increase in rent.
Compared to the rest of the Greater Portland market, the Battle Ground region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 2 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,050 sqft. Most properties in this region are approximately 2 stories. Most buildings in this market were built in 2008 and are Class A.