Construction is the process of building a suitable structure. It starts with planning, design, and financing; and continues until the project is built and ready for use. History The first huts and shelters were constructed by hand or with simple tools. As cities grew a class of professional craftsmen, like bricklayers and carpenters, appeared. Occasionally, slaves were used for construction work. In the Middle Ages, these were organized into guilds. Later, steam-powered machinery appeared, along with diesel- and electric powered vehicles such as cranes, excavators and bulldozers. Types of construction In general, there are three sectors of construction: buildings, infrastructure and industrial. Building construction is the process of adding structure to real property or construction of buildings. The majority construction includes small renovations, such as addition of a room, or renovation of a bathroom. Building construction projects typically include various common e