Most listings are in the $10's per square foot per year. The Tacoma submarket is seeing a an increase in rates. In the last 3 months, the median rate increased $16 per sqft per year.
Compared to the rest of the Seattle Metropolitan Area market, the Tacoma region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 13 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 292% of the office spaces in the Tacoma 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,040 sqft. Most properties in this market are around 2 stories. Most buildings in this market were built in 1975 and are Class B.