Your TDECU Houston Greenway Member Center located at 3800 Southwest Freeway #100 in Houston, Texas is here to provide lobby and drive-thru services including a deposit-taking ATM, a night drop for deposits, safe deposit boxes, and more. TDECU is a non-profit financial cooperative with more than $4.8 billion in assets, serving 376,000+ credit union Members with competitive financial products and personalized services. Contact us at (800) 839-1154. Equal Housing Lender. Insured by NCUA.