On average, listings lease in the $10's per square foot per year. The Brooklyn Center submarket is experiencing a decline in rates. In the last 3 months, the median rate fell $4 per sqft per year. That's a 20% decline in rent.
In the last 90 days, 21 listings have been made available, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 310 sqft. Most buildings in this market are close to 2 stories. Most buildings in this region were built in 1985 and are Class B.