On average, listings lease in the $10's per square foot per year. The Manchester submarket is seeing a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 14% decrease in rent.
In the last 90 days, 7 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,760 sqft. Most buildings in this market are around 2 floors.