The approximate two-square mile area lying north of Northwest Highway, south of Walnut Hill Lane, east of Midway Road and west of Preston Road remain
the essential original boundaries of Preston Hollow, which is often now termed Old Preston Hollow. However, the neighborhood is broadly defined
by real estate professionals for marketing purposes as land to the north of Northwest Highway (Loop 12), south of Royal Lane, east of Midway Road
and west of North Central Expressway (US 75), which areas are grouped into the Preston Hollow Elementary school attendance zone.Preston Hollow
is known as one of the wealthiest areas of Dallas. It is also one of the wealthiest areas in Texas. Within Old Preston Hollow can be found
some of the most expensive homes in Texas as well as some of the state's wealthiest residents. Teardowns and real estate development has seen
a great increase over the past decade.