On average, listings lease in the $10's per square foot per year. The Forest Hills region is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decrease in rent.
In the last 90 days, 7 listings have been made available, which means office spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 29% of the available leases in the Forest Hills 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.
The standard measurement for office space in this area is around 1,230 sqft. Most properties in this area are approximately 2 floors. Most buildings in this region were built in 1984 and are Class A.