Most listings are in the $20's per square foot per year. The Burlington region is going through a an increase in rates. In the last 3 months, the median rate rose $26 per sqft per year.
In the last 90 days, 23 listings have been posted online, which means listings are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 52% of the office spaces in the Burlington 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.
Even though the median size is 3,000 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this area are approximately 3 stories. Most buildings in this region were built in 1870 and are Class A.