The typical asking rate per listing is in the $10's per square foot per year. The Manchester region is going through a decline in rates. In the last 3 months, the median rate decreased $0 per sqft per year. That's a 2% decrease in rent.
In the last 90 days, 4 listings have been posted online, which means spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. About 75% of the available space in the Manchester are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,360 sqft. Most properties in this area are around 2 floors. Most buildings in this region were built in 1930 and are Class B.