Most listings are in the $40's per square foot per year. The Richmond Hill region is going through a an increase in rates. In the last 3 months, the median rate rose $46 per sqft per year.
Compared to the rest of the New York City market, the Richmond Hill region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have come on the market, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,200 sqft. Most properties in this area are close to 3 floors. Most buildings in this market were built in 1931.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Real estate is the dominant industry in this region. Most of the folk of Richmond Hill work from home. Commuting around an hour and a half a day is the norm for those who opt to reside in this part of town.