Most listings are in the $10's per square foot per year. The Lynden region is experiencing a a rise in rates. In the last 3 months, the median rate went up $15 per sqft per year.
In the last 90 days, 3 listings have been posted online, which means spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 100% of the listings in the Lynden are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,060 sqft. Most buildings in this market are close to 1 floors. Most buildings in this region were built in 2008.