Most listings are in the $10's per square foot per year. The Northbrook region is seeing a a boost in rates. In the last 3 months, the median rate went up $19 per sqft per year.
In the last 90 days, 4 listings have come on the market, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 125% of the listings in the Northbrook 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 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 660 sqft. Most buildings in this market are close to 2 floors. Most buildings in this area were built in 1977.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Wholesale trade is the dominant industry in this area. Commute by motorcycle is the most popular way to get to work amongst Northbrook occupants. Commuting between 20 and 25 minutes a day is the norm for those who opt to reside in this part of town.