A teardown is a process in which a real estate company or individual buys an existing home or other building and then demolishes and replaces it with a new one. Frequently, the new building is larger than the previous one. Reasons for developers to tear down can include increasing the appeal of the property to prospective buyers or taking advantage of rising property values. The process is especially common in older suburbs, where people wish to have larger homes, and yet do not want to move to distant exurbs or new developments.
Replacement often brings modernization, new structures being built to modern building codes, energy efficiency standards, and aesthetics. They may be in different architectural style, thus not fitting the historic character of the neighborhood. However, not all older homes have historical or architectural value. Finally, an existing house may have no value relative to the land it sits on, such as in wealthy cities like Vancouver, British Columbia. The redevelopment of brownfield land also usually involves teardowns, but the term is often limited to residential properties.