On average, listings lease in the $10's per square foot per year. The Arbutus submarket is going through a an increase in rates. In the last 3 months, the median rate went up $16 per sqft per year.
Compared to the rest of the Greater Baltimore market, the Arbutus region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 8 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. 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 710 sqft. Most buildings in this region are approximately 1 stories. Most buildings in this market were built in 1973 and are Class C.