George Tarbey is head of Franchise Development at Century 21 Australia. With over 250 independently owned and operated real estate agencies throughout Australia, CENTURY 21 is the world's largest real estate network. CENTURY 21. Smarter. Bolder. Faster. We're at your service - CENTURY 21 may be the largest real estate sales organisation in the world, but our focus is on being the very best. With thousands of offices around the world we have learned a few things about how people want to buy, sell and rent property. We are here to share those learning's - and to offer you the best advice possible.