Most listings are in the $10's per square foot per year. The Bellingham region is going through a a rise in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 25% rise in rent.
In the last 90 days, 25 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 84% of the listings in the Bellingham are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 4,000 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this region were built in 1990 and are Class A.