Where is keller williams realty international located? Office Search Keller Williams Realty International 1221 South Mopac Expy, Suite 400 Austin, TX 78746Where is keller williams moving to in nyc? Keller Williams New York City is moving its offices uptown, closing a turbulent chapter for the franchise brokerage. The residential firm said it will occupy more than 20,000 square feet at 99 Park Avenue in Midtown.Why keller williams real estate? Our agent-centric model combined with our proprietary technology makes us the only real estate company that offers customers the experience they want. Keller Williams attracts talent spanning industries across the globe. Professionals from perse career paths often find their niche here. We can’t help but create headline-making news.