Demolition is the process of tearing down buildings or structures. It is often necessary for urban development, safety reasons, or to make way for new construction. Various methods are used, including mechanical demolition with heavy machinery, and controlled demolition, which involves explosives to bring down structures safely. Demolition requires careful planning and adherence to safety regulations. Before starting, a site assessment is conducted to identify hazardous materials, such as asbestos or lead paint. Proper permits must be obtained, and the surrounding area is secured to protect people and property during the demolition process.