Greenland Hills is a neighborhood in east Dallas, Texas (USA). It is bounded on the west by North Central Expressway (US 75), on the south by Vanderbilt Avenue, on the east by Greenville Avenue and on the north by McCommas Boulevard. The area is also known as the M Streets due to two major streets (McCommas and Monticello) and many of the minor streets starting with the letter M. The neighborhood also forms the M Streets Conservation District, per the M Streets Conservation District Ordinance.