Most listings are in the $30's per square foot per year. The Old Town Chinatown submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $0 per sqft per year. That's a 1% rise in rent.
Compared to the rest of the Greater Portland market, the Old Town Chinatown region has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 24 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 4% of the listings in the Old Town Chinatown are subleases, so you will probably have to consider a longer term 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 4,480 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this market are around 3 stories. Most buildings in this area were built in 1904 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Education is the dominant industry in this area. Most of the folk of Old Town Chinatown work from home. Commuting approximately an hour a day is the norm for those who opt to reside in this part of town.