On average, listings lease in the $10's per square foot per year. The West Haven submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 19 listings have been posted online, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. About 32% of the available leases in the West Haven are subleases, so you might be able to snag a great spot on a short term. 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 2,120 sqft. Most buildings in this market are around 1 floors. Most buildings in this market were built in 1961.