Bjarke Ingels Group (BIG), an architecture firm, has recently revealed the architectural design for Gelephu International Airport in Bhutan, the second international airport planned by the country scheduled to be opened in 2029.

Designed by Bjarke Ingels Group (BIG) in collaboration with Arup, Cistri, and NACO, the airport is a key component of Bhutan's Gelephu Mindfulness City (GMC) masterplan, envisioned as a hub for economic and sustainable growth.

Located in Sarpang district, near the Bhutan-India border, the airport is expected to handle 1.3 million passengers annually by 2040, with capacity projections rising to 5.5 million by 2065. Covering 68,000 square metres, the facility is set to blend traditional craftsmanship with contemporary infrastructure.

The architectural design integrates a modular diagrid structure, crafted from locally sourced glulam timber, paying homage to Bhutanese building traditions. The terminal features intricate Bhutanese woodcarvings and painted façades, drawing inspiration from the "Kachen", a sacred wooden pillar in Bhutanese architecture that symbolises both structural integrity and spiritual significance, as per BIG.

Reflecting Bhutan's commitment to sustainability, the airport incorporates climate-responsive features, including photovoltaic panels, extended eaves for shade and weather protection, and passive cooling elements. The wooden structure naturally regulates humidity, while courtyards and ventilated roofs enhance airflow. The Forest Spine, a central green courtyard within the terminal, introduces Bhutan's rich biodiversity into the airport, featuring indigenous flora, treetop walkways, and meditation spaces.

Gelephu International Airport will also serve as Bhutan's first in-land mobility hub, integrating public transport systems such as trackless trams and buses to enhance connectivity between the airport and the broader Gelephu region. The airport is projected to open in 2029, offering a link between Bhutan's cultural heritage and modern infrastructure.

The project will be showcased at the 2025 Venice Architecture Biennale, according to BIG.

BIG, known for its forward-thinking architectural developments, has been involved in several major global projects, including Kosovo's first opera house and the Mandarin Oriental Residences in Abu Dhabi.