The typical asking rate per listing is in the $10's per square foot per year. The Forest Hills region is going through a a boost in rates. In the last 3 months, the median rate went up $18 per sqft per year.
In the last 90 days, 7 listings have been posted online, which means leases might be leasing quickly. You'll want to be prepared to make an offer immediately. About 57% of the available leases in the Forest Hills 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 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 2,500 sqft. Most properties in this area are around 1 stories. Most buildings in this market were built in 1984 and are Class A.