LEED Gold Certified 2021


Bangkok Hospital Chiang Rai has been firstly awarded LEED Gold Certified in SEA. LEED (Leadership in Energy and Environmental Design), developed by the U.S. Green Building Council (USGBC), is the most widely used green building rating system in the world and an international symbol of excellence. Through design, construction and operations practices that improve environmental and human health, LEED-certified buildings are helping to make the world more sustainable.


LEED 2009 for Healthcare

The LEED (Leadership in Energy and Environment) rating system is an internationally recognized green building certification program, developed by the U.S Green Building Council (USGBC). LEED for Healthcare rating system is designed to assess sustainable and high-performance health care facility, with the focus on both the health of the patient as well as the health of the environment.

Sustainable Site

Located in the city area of Chiangrai, the site is easily accessible by public transportation which can help minimize individual car usage. The hospital have preferred parking spaces dedicated to low-emitting and fuel-efficient vehicles as well as bicycle parking and storage to accommodate the use of alternative transportation.

A Places of Respite

Green roof and open spaces with tree canopies, pedestrian amenities, and wheelchair space offers biophilic environment and places of respite for medical staffs, patients, and visitors within the campus.

Energy Efficiency

Due to the 24-7 operation nature of hospital service, strategies such as 100 percent use of LED lightings, high efficiency motors, and solar-powered water heater are employed to reduce the overall building energy consumption.

Efficient Water Use

Water-saving fixtures with high-efficiency flush result in up to 35 percent reduced water usage. Rainwater and recycled water are used instead of potable water for irrigation.

Lighting Controllability

Building occupants are entitled individual lighting control via manual pull switch for flexibility and comfort. For patient rooms, lighting and privacy curtain control panel have been installed next to bed, within reach.


Metering and sub-metering in various building systems to measure and verify building energy consumption.

Material Safety

As a healthcare facility, strong emphasis has been placed on the use of non-toxic materials which are both environmentally-friendly and safe for the human health.
  • Pipes, fittings, and fixtures are “lead-free” per US EPA’s Safe Drinking Water Act (SDWA) standard or equivalent.
  • Interior paints and sealants have no lead and cadmium as well as low VOC content.
  • All flooring and finishing materials pass CDPH/EHLB Standard Method
  • Control of mercury content in dental care facilities per ISO-11143
  • No mercury-containing lamp
Building operation policy is in place for systematic storage and collection of recyclables, and disposal of wastes and hazardous substances to minimize occupants’ exposure to harmful chemicals

Indoor Air Quality

HVAC design complies with ASHRAE Standard 62.1-2007 and ASHRAE Standard 170-2008 for healthcare facilities requirements. Airflow and CO2 sensors are installed to monitor and verify that adequate ventilation and high indoor air quality have been achieved.