The typical asking rate per listing is in the $20's per square foot per year. The Tigard region is seeing a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 7% decline in rent.
Compared to the rest of the Greater Portland market, the Tigard region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 42 listings have been listed, so you'll want to check back regularly for new listings. About 10% of the listings in the Tigard are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,480 sqft. Most properties in this area are around 2 stories. Most buildings in this region were built in 1986 and are Class A.