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A Look at Two LEED Platinum v4 Buildings

February 17, 2015 | 0 comments

Only two buildings in the world have achieved LEED Platinum v4 certification since it was announced in July 2013. (Through Oct. 31, 2016, commercial buildings can still apply for LEED 2009 instead of LEED v4.) The first LEED v4 building, Haworth Showroom in Beijing, was awarded LEED CI Platinum in October 2013 after earning 71 out of 110 possible LEED points.

Last September, the U.S. Green Building Council awarded its second LEED Platinum v4 certification to One Sansome Street in San Francisco. One Sansome Street earned 80 out of the 110 possible LEED points.

While both buildings make energy efficiency and water conservation a priority by using low-flow fixtures, building controls, efficient lighting and HVAC systems, etc. – which is necessary for LEED – they each focused on maximizing building performance in specific areas to reach Platinum status.

Haworth Showroom
This Beijing showroom, which is 800,000 square feet, offers variable air volume (VAV) air diffusers under the floors. Cold radiation ceilings provide separate individualized control for solar exposure and interior space, which improves occupant comfort and reduces energy consumption.

The showroom has also installed a greywater recycling system, which harvests “gently used” water from showers, sinks, and commercial washing machine or dishwasher rinse water. The water is treated and then brought back into the building to flush toilets or irrigate outdoor landscaping.

One Sansome Street
This 41-story tower already had a LEED Gold rating, awarded in 2010. To move to LEED EB O&M Platinum, the facilities team focused on solid waste diversion. More than 78% of the solid waste generated by tenants in the building is now diverted from landfills.

The building also made a switch in janitorial products. Now, more than 91% of its janitorial product costs go toward sustainable cleaning and maintenance: floor sealers, disinfectants, and even compostable garbage bags.

The building also successfully earned all LEED points available in the transportation, energy, and indoor water performance categories.

If your building is LEED certified, what steps did you take beyond basic water conservation and energy-efficiency strategies?

Photo credit: Courtesy of CBRE

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