ST Diamond Building – A Green Building Landmark in South East Asia

If anyone is to wander around Putrajaya and wondering what is the diamond like shaped building about, it is actually one of the  lowest energy consumption building in South East Asia. The Headquarters of Energy Commission of Malaysia plays a vital role in the green building industry that reflects a highly sustainable scheme that makes use of passive design, energy efficiency and renewable energy. It is the first building to obtain the highest of both green building certifications, namely Malaysia’s very own GreenBuildingIndex and Singapore’s Green Mark, both Platinum rated. Also this building has won several awards such as Asean Energy Awards (AEA) 2012 and ASHRAE technology award 2013 (2nd place).


While the information of this green development is abundant on the internet, here we try to share some key facts of this green development. There are videos, power point slides, and articles below to guide you through as well. Among the key green features of ST Diamond Building are:

  • Annual Energy Consumption: 65kWh/m2/year (excludes PV Solar Energy). Typical office building in Malaysia is around 210kWh/m2/year.
  • Passive Design: The facade is tilted 25 degrees is sculpted after the solar path in Malaysia for the building to be self-shading. The diamond shape helps to minimise air filtration by preventing breezes from passing through the building. The tilted facade also guides the breeze to flow below to help to ventilate the car park area at the basement.
  • Daylight Design: Natural Daylight is captured abundantly, both from facade and atrium. For the highest floor, a light trough (‘light well’) is used to bring in daylight into the deepest floor space area.
  • Lighting Design: Light sensors are incorporated, Occupants are encouraged to use LED task lights. Efficient lighting such as T5 is used.
  • Floor Slab Cooling: The second project in Malaysia to incorporate such technology. Water pipes embedded in concrete floor slabs cools the building at night and gives off radiant cooling passively in the daytime. This allows the maximum cooling demand for the building to be reduced by about 50%.
  • Renewable Energy: Thin Films Solar Panels are integrated in the roof with an installed capacity of 71.4 kWp and reduce the buildings energy consumption by 10%. The thin film solar technology is suitable for the tropical climate, as this type of solar cells is better at capturing diffuse light and conventional solar panels – and thin film solar cells also experience less of a drop in energy efficiency when baking under the hot sun. Their measured efficiency is 1400 kWh/kWp, which significantly higher than conventional solar PV (1150 kWh/kWp).
  • Water Reduction: 35% of potable water consumption is saved as rainwater is harvested for toilet and irrigation; grey water harvesting for irrigation, and using water efficient fixtures such as waterless urinals. Hence, reducing the overall water consumption by 65%.
  • Material Usage: The suspended ceilings are taken away, which also helps the natural daylight penetration deeper into the office space, recycled content and Low VOC materials are used for carpets and plasterboards.

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A guide through Video is available here:

This building has been operating for 3 years and we are still monitoring the energy performance and even fine tuning it. We acknowledge the maintenance team of this building has been maintaining it well and also educating the staffs more about the building they are working in. It is vital that the users could adapt to such green building environment and understand how it works in order for the building to achieve its purpose which is using lesser energy.

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And here we hope that everyone will do their little part to save energy and water in their daily routine, regardless of which building they are in, because ultimately the factor that determines a green building is the users themselves! So do something today at your home or at your office 😉 Use that magic finger to switch off unnecessary lights and roll up the blinds, invite in natural daylight. And i am sure you know many other things you could do and all you need is that effort!

For further information on IEN’s input to ST Diamond Building, please do not hesitate to drop us a message Here!

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