Most listings are in the $10's per square foot per year. The Bellingham submarket is going through a decline in rates. In the last 3 months, the median rate fell $3 per sqft per year. That's a 14% decline in rent.
In the last 90 days, 58 listings have come on the market, so you'll want to check back regularly for new listings. 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 1,590 sqft. Most buildings in this area are around 2 floors. Most buildings in this market were built in 1985 and are Class B.