The typical asking rate per listing is in the $10's per square foot per year. The West Haven region is seeing a decrease in rates. In the last 3 months, the median rate decreased $43 per sqft per year. That's a 73% decline in rent.
In the last 90 days, 19 listings have been listed, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 5% of the office spaces in the West Haven are subleases, so you will probably have to focus your search on direct office leases. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,190 sqft. Most properties in this area are around 1 floors. Most buildings in this market were built in 1962.