Westpark Tollway in the context of Farm to Market Road 723

Westchase is a business district and neighborhood in western Houston, Texas, bounded by Westheimer Road on the north, Gessner Road on the east, Houston Center Boulevard on the west, and Westpark Tollway on the south. The area is bisected by Beltway 8. Westchase is adjacent to Greater Sharpstown, the International District (which includes part of Chinatown), and the Royal Oaks Country Club subdivision. The area is immediately northeast of Alief.

A large portion of Westchase is covered by a special district, the Westchase Management District, which was created by the Texas Legislature in 1995. This entity, funded by a tax increment on businesses within its boundaries, provides branding, urban planning, and public safety functions for its constituents.

Greater Katy Area is the term often used to refer to a suburban region on the west side of the Greater Houston metropolitan area roughly corresponding to the boundaries of the Katy Independent School District. Many people and businesses in this area have a Katy address, but are not part of the city of Katy. This area includes the suburbs that surround the Katy city limits west to Pederson road, roughly east to State Highway 6, north to FM 529, and south to FM 1093/ Westpark Tollway Parkway. While these boundaries are not exact, it gives a rough outline of what most people consider Greater Katy, and what the USPS designates as "Katy, Texas" by assigning that city to addresses within zip codes that fall in this region. Most of Greater Katy is to the east of the city of Katy toward Houston and includes surrounding suburban areas and unincorporated areas that are not in the Houston city limits. The region includes parts of Harris County, Fort Bend County, and Waller County much as the City of Katy does. Greater Katy is one of the fastest-growing portions of the Houston metropolitan area and the state of Texas as a whole.

Westheimer Road (/ˈwɛst(h)aɪmər/) is an arterial east–west road in Houston, Texas, United States. It runs from Bagby Street in Downtown and terminates at the Westpark Tollway on the southern edge of George Bush Park, stretching about 19 miles (31 km) long. The street was named after Michael Louis Westheimer, a German immigrant and flour salesman.