Most listings are in the $10's per square foot per year. The Lakewood region is seeing a a boost in rates. In the last 3 months, the median rate went up $17 per sqft per year.
Compared to the rest of the Seattle Metropolitan Area market, the Lakewood region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 4 listings have come on the market, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 2,120 sqft. Most buildings in this region are around 2 stories. Most buildings in this area were built in 1980 and are Class C.