CENTURY 21 Colonial offers a variety of property buying and selling services. The firm deals in several types of properties, such as single-family homes, townhomes, condominiums and commercial facilities. It additionally provides online mortgage and prequalification calculators, as well as offers relocation services. CENTURY 21 Colonial is affiliated with Century 21 Real Estate, one of the world's largest residential real estate organizations that offers services through more than 8,000 independently owned and operated offices. Century 21 Real Estate offers services in more than 50 countries located in North America, Latin America, Europe, the Middle East and Asia. CENTURY 21 Colonial is located in Covina, Calif.