Prosperity Bank Grand Parkway Banks/Credit Unions/Financial Institutions Visit Website 1515 W Grand Parkway S Katy, TX 77494 713-669-3313 (281) 693-1400 (fax) Hours: Phone Express 24 hours a day, 7 days a week 281.564.3600 Highlights Map Highlights Personal and Business BankingATM/VISA Check Card ServicesSafe Deposit Box Time Deposit Accounts Retirement solutions Directions GRAND PARKWAY 1515 W Grand Parkway S Katy, TX 77494 What's Nearby? Distance: 5 10 15 20 25 50 mi.