Compared to the rest of the Greater Boston market, the Londonderry region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 28 listings have been made available, which means spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 4% of the office spaces in the Londonderry are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,540 sqft. Most buildings in this market are around 2 floors. Most buildings in this region were built in 1988 and are Class B.