智能建筑是指以建筑为平台，兼备建筑设备、办公自动化及通信网络系统，集结构、系统、服务、管理及它们之间的最优化组合，为人们提供一个安全、高效、舒适、便利的建筑环境。其主要构成包括楼宇管理自动化系统（Building Management Automation System）、通信自动化系统（Communication Automation System）和办公自动化系统（Office Automation System）。

世界首幢智能建筑是1984年在美国哈特福德市建成的City Place大厦。

Building automation is the automatic centralized control of a building's heating, ventilation and air conditioning, lighting and other systems through a building management system or building automation system (BAS). The objectives of building automation are improved occupant comfort, efficient operation of building systems, and reduction in energy consumption and operating costs,and improve life cycle of utilities.