Most listings are in the $30's per square foot per year. The Old Port District region is going through a an increase in rates. In the last 3 months, the median rate increased $6 per sqft per year. That's a 20% increase in rent.
In the last 90 days, 2 listings have come on the market, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 450% of the listings in the Old Port District are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,100 sqft. Most properties in this area are around 4 stories. Most buildings in this area were built in 1880 and are Class B.
Waste services is the dominant industry in this region. Most of the folk of Old Port District work from home. Commuting between 30 and 45 minutes a day is the norm for those who opt to reside in this part of town.