Northbrook had 20 sales during the week of Tuesday, July 29 to Monday, August 4, including including 15 single family homes for sale with an average list price of $1,058,953.33, 2 townhouses for sale with an average list price of $567,000, 2 condos for sale with an average list price of $349,949.50, and 1 lot for sale with a list price of $550,000.