Most listings are in the $10's per square foot per year. The Midland Park region is going through a a boost in rates. In the last 3 months, the median rate went up $20 per sqft per year.
In the last 90 days, 1 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 100% of the listings in the Midland Park are subleases, so you might be able to find a shorter term or below market rent. 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 1,370 sqft. Most buildings in this area are around 3 stories. Most buildings in this market were built in 2016.