A townhouse is a home that is attached to one or more other houses, located on a specific property that the townhouse owner also owns. Townhouses can range drastically in size and architecture, including multi-unit structures such as duplex and triplex. Advantages to owning a townhouse can include less financial responsibility for exterior maintenance and repair costs, heightened security afforded by a more high-density community and amenities for which the homeowner is not directly responsible (pool, tennis courts, etc.). Disadvantages often include less privacy than with a single-family home, less freedom to alter the home’s exterior and a monthly or yearly homeowners’ association fee.