The Department of Buildings (DOB) is a government agency responsible for ensuring the safe and lawful use of over one million buildings and properties in its jurisdiction. It regulates construction by enforcing building codes and zoning regulations, issuing permits, and conducting inspections. The DOB generates revenue primarily through permit fees, fines, and penalties for non-compliance. Established in the late 19th century, it has evolved to incorporate modern safety standards and technology, playing a critical role in urban development and public safety.