On average, listings lease in the $20's per square foot per year. The Hillsboro region is seeing a a rise in rates. In the last 3 months, the median rate went up $6 per sqft per year. That's a 26% increase in rent.
Compared to the rest of the Greater Portland market, the Hillsboro region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 30 listings have been listed, which means spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 67% of the available space in the Hillsboro 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 posted, so finding a space for a small business might be tough.
Even though the median size is 6,460 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are close to 2 stories. Most buildings in this area were built in 1998 and are Class A.