Most listings are in the $20's per square foot per year. The Downtown Portland region is experiencing a a boost in rates. In the last 3 months, the median rate went up $3 per sqft per year. That's a 12% increase in rent.
In the last 90 days, 30 listings have been listed, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 3% of the listings in the Downtown Portland are subleases, so you will probably have to consider a longer term 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 2,500 sqft. Most properties in this region are close to 4 stories. Most buildings in this region were built in 1893 and are Class B.
This market is fairly equally mixed residential and commercial. Waste services is the dominant industry in this area. Commute by car is the most popular way to get to work amongst Downtown Portland folk. Commuting between 30 and 45 minutes a day is the norm for those who opt to reside in this part of town.