The Mountainside Middle School area had 21 sales during the week of Tuesday, April 14 to Monday, April 20, including including 15 single family homes for sale with an average list price of $1,787,765.93, 1 townhouse for sale with a list price of $524,900, 4 condos for sale with an average list price of $349,500, and 1 lot for sale with a list price of $699,000.