In the last 90 days, 0 listings have been made available, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About NaN% of the listings in the Newton 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 posted, so finding a space for a small business might be tough.
Even though the median size is 5,000 sqft, there are still 0 leases below 2,000 sqft. Most properties in this region are approximately 2 stories. Most buildings in this market were built in 1958 and are Class B.