On average, listings lease in the $20's per square foot per year. The Hillsboro region is experiencing a a rise in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% increase in rent.
Compared to the rest of the Greater Portland market, the Hillsboro region has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 7 listings have been listed, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 43% of the listings 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 18,780 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this region are around 2 floors. Most buildings in this area were built in 1999 and are Class A.