According to the Bangkok Metropolitan Administration, Bangkok has 6.99m² of green space for each person, which is less than the minimum of 9m² recommended by the World Health Organization (WHO). The Benchakitti Forest Park is located in the center of Bangkok, and it was opened to the public in 2022. At the same time, it will give Bangkok a wider green open space and provide a brand-new well-being lifestyle.
© Rungkit Charoenwat
Benchakitti Rain Forest Observatory is an architectural manifesto aiming at creating more natural environments and expressing the demands of Bangkokians for green spaces. The project is in the center of Benchakitti Forest Park, surrounded by a large number of wetlands and trees. Its natural ecology, combined with the singing of flowers, birds, and insects, is as beautiful as a paradise. Hung And Songkittipakdee (HAS) continue the natural impression of Benchakitti Forest Park and regard the Benchakitti Rain Forest Observatory as a gift to the citizens of Bangkok. Therefore, the design intention is to make the architecture part of nature.
© Rungkit Charoenwat
Inspired by the site, the Benchakitti Rain Forest Observatory seems to be covered by many leaves. It is not only like a floating wetland island but also like the most precious tropical rainforest in the natural ecology, providing visitors with a common habitat for animals and plants. Its slightly undulating form guides visitors to the upper observatory level, which overlooks the park; and the lower rest level, which combines the water mist system to simulate the wetland environment and provides activities for the citizens, such as daze, yoga, meditation, and family events.
© Rungkit Charoenwat
During the day, the Benchakitti Rain Forest Observatory is like a chameleon in the park. Nearly one hundred smart boards are combined with four different green colors of sustainable paint to achieve a perfect balance with the environment. At night, the light strips behind the smart boards provide various lighting and make the building disappear in the natural field. HAS Design and Research believes that the Benchakitti Rain Forest Observatory is not just a service facility; it is more like a tropical rainforest. It not only provides people with a shading function but also releases a space that gathers citizens, cultivates people’s hearts, and hosts educational events to show Bangkok will pay attention to and care for the environment in the future.
Project Info
Architects: HAS design and research
Area: 130 m²
Year: 2022
Country: Bangkok, Thailand
Photographs: Rungkit Charoenwat
Lead Architects: Jenchieh Hung, Kulthida Songkittipakdee
Structure consultant: Goldstar Metal
Constructor: Alufence
Lighting Design: Light Is
Design Team: Jenchieh Hung, Kulthida Songkittipakdee, Tapanee Laddahom, Chiwen Chang
Landscape Design: Arsom Silp Institute of the Arts
Existing Architecture: Arsom Silp Institute of the Arts
Client: The Association of Siamese Architects under Royal Patronage (ASA)
Program: Public Building, Park, Observatory
Façade Consultant: AB&W Innovation
Anastasia Andreieva is an accomplished Architectural Projects Editor at Arch2O, bringing a unique blend of linguistic expertise and design enthusiasm to the team. Born and raised in Ukraine, she holds a Master’s degree in Languages from Taras Shevchenko National University of Kyiv. Her deep passion for architecture and visual storytelling led her to transition from translation and editorial roles into the world of design media. With a keen eye for conceptual clarity and narrative structure, Anastasia curates and presents global architectural projects with precision and flair. She is particularly drawn to parametric and digital design, cultural context, and emerging voices in architecture. When I’m not analyzing the latest architectural trends, you’ll probably find me searching for hidden gems in cityscapes or appreciating the beauty of well-crafted spaces. After all, great design—like great connections—can be found in the most unexpected places. Speaking of connections, because architecture isn’t the only thing that brings people together.