(a) Building reuse - instead of demolition, the building structure or shell is reused.
(b) Construction waste management - diverting construction and demolition waste from ladfill into other uses
(c) Materials reuse - a portion of the materials of the project must be salvaged or recycled
(d) Recycled content - use of materials with "recyled content"
(e) Regional materials - use of local materials will reduce transport and energy cost
Structural engineers should design building which are adaptable to provide for ease of alteration or amendment in use. Buildings which consists of elements that can easily be deconstructed are preferrable for possible reuse. By proper planning and efficient design and knowledgeable of sustainability concepts, green buildings can be successfully built.