Buildings are responsible for most energy and water consumption as well it produces huge wastage. There are need huge materials to construct a building. To keep pace with present economic growth huge development work going under government and private sector. There are more than 3,000 garments factories in Bangladesh. Besides, there are hospitals, hotels, commercial building and many residential areas. Buildings have negative impact from its construction to demolition.

Green Building Technology, also known as Green Construction, is the implementation of design in structures, buildings and commercial spaces that are environmentally accountable and resource-efficient throughout the building’s life cycle, i.e., from planning to design, construction, operation, maintenance, renovation.

A ‘green’ building is a building that, in its design, construction or operation, reduces or eliminates negative impacts, and can create positive impacts, on our climate and natural environment. Green buildings preserve precious natural resources and improve our quality of life.

There are a number of features which can make a building ‘green’. These include: 

• Efficient use of energy, water and other resources
• Use of renewable energy, such as solar energy, wind or hydro energy
• Pollution and waste reduction measures, and the enabling of re-use and recycling
• Good indoor environmental air quality for the occupants
• Use of materials that are non-toxic, ethical and harvested from sustainable sources
• Consideration of the environment in design, construction and operation
• Consideration of the quality of life of occupants in design, construction and operation
• A design that enables adaptation to a changing environment

Any building can be a green building, whether it’s a home, an office, a school, a hospital, a community centre, or any other type of structure, provided it includes features listed above