1. Why defining green building matters
Green building is often misunderstood as simply adding greenery or using eco-friendly materials. In reality, it represents a comprehensive approach to construction.

2. International perspectives on green building
Leading organizations define green building:

- VGBC: According to DECREE 15/2021/ND-CP on DETAILED REGULATIONS ON A NUMBER OF CONTENTS REGARDING MANAGEMENT OF CONSTRUCTION INVESTMENT PROJECTS, issued on March 3, 2021, Chapter I, Article 3, Item 6 explains that: Green Building is a building which is designed, built, and operated to meet the criteria and standards for energy efficiency, resource saving; convenience and quality of the indoor living environment, and protecting the external environment (https://vgbc.vn/en/2030-actions)

- USGBC: Green building is a holistic concept that starts with the understanding that the built environment can have profound effects, both positive and negative, on the natural environment, as well as the people who inhabit buildings every day. Green building is an effort to amplify the positive and mitigate the negative of these effects throughout the entire life cycle of a building (https://www.usgbc.org/articles/what-green-building)

- SGBC: Green buildings are designed with both the environment and people in mind. They can help save on energy and water usage and reduce waste, making them more affordable to maintain and operate. More importantly, they provide healthier living and working environments, which can enhance the well-being and productivity of the individuals who use them (https://www.sgbc.sg/about-green-building)

- GBCA: Green building meets the needs of the present without compromising the future (https://www.gbca.au/about/what-is-green-building)

3. Shared principles across definitions
Despite contextual differences, green building definitions share:
- Holistic thinking
- Lifecycle perspective
- Long-term value creation

4. Green building in Vietnam’s context
Many buildings in Vietnam deteriorate early due to inappropriate materials and execution. Proper understanding shifts focus toward durability and longevity.

5. Green building is not necessarily expensive
When approached correctly, green building reduces repairs, lowers operating costs, and optimizes lifecycle value.

6. Green building as a sustainability foundation
Green building forms the basis of environmental, economic, and social sustainability in construction.

7. BUMATECH’s perspective
BUMATECH views green building as a mindset centered on appropriate materials, proper construction, and long-term durability.

8. Conclusion
Green building is not a trend, it is a necessary foundation for responsible and durable construction.