On average, listings lease in the $10's per square foot per year. The Cumberland County submarket is going through a an increase in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 21% rise in rent.
In the last 90 days, 57 listings have been made available, so you'll want to check back regularly for new listings. About 4% of the office spaces in the Cumberland County are subleases, so you will probably have to consider a longer term lease. 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 990 sqft. Most buildings in this market are around 2 floors. Most buildings in this market were built in 1988 and are Class B.