In the last 90 days, 1 listings have been listed, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. About 100% of the available space in the Fordham Heights 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 sqft. Most buildings in this market are close to 2 floors.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Waste services is the dominant industry in this area. Most of the folk of Fordham Heights work from home. Commuting around 15 minutes a day is the norm for those who opt to reside in this part of town.