The Taipei 101 skyscraper in Taiwan is applying for the Leadership in Energy and Environmental Design (LEED) Gold certification in a bid to become the world's tallest green building.
The building is expected to achieve the goal in the first quarter of 2011.
It recently underwent upgrades worth NT$60m (US$1.89m) which included installation of LED light fixtures and optimisation of air conditioning systems.
The building was outfitted with many green features during its construction including double-pane low-emission glass, a waste recycling programme, a greywater system and a building energy management system.
Increased green landscapeing efficient lighting systems, water conservation and recycling, and improved waste recycling are required, according to focustaiwan.tw.
The building will have to reduce its carbon footprint and incorporate further green improvements.