Gautam Buddha International Airport

Project Overview

Gautam Buddha International Airport (GBIA) in Bhairahawa stands as one of Nepal’s premier national pride projects, establishing an international aerial portal to the historic Lumbini region.

D Sketchbook (P) Ltd. contributed to enhancing the terminal’s architectural functionality and human user experience. The core focus centered on orchestrating efficient passenger flow, intuitive zoning, passenger security, acoustic comfort, eco-friendly systems, and state-of-the-art technological integration.

The Brief & Context

As Nepal’s second international airport, GBIA was commissioned to relieve congestion at Tribhuvan International Airport in Kathmandu while directly serving international pilgrims visiting Lumbini, the birthplace of Lord Buddha.

Key design requirements:

• Create an intuitive passenger processing sequence from curbside drop-off through check-in, customs, and departure lounges.
• Address the humid subtropical climate of Bhairahawa through passive solar protection and conditioned air retention.
• Integrate high-density security controls without creating claustrophobic holding zones.
• Establish an architectural interior vocabulary that is durable, maintenance-efficient, and culturally resonant.

Spatial Strategy & Circulation

The spatial configuration utilizes a clear linear flow model:

1. Curbside & Landside Concourse: High-ceilinged staging area equipped with generous natural illumination and broad spans to accommodate departing travelers and their companions.
2. Central Processing Threshold: Consolidated customs, baggage screening, and biometric clearance lines arranged with clear visual sightlines to airside gates.
3. Airside Departure Lounge: Expansive glass facades offering panoramic views of taxiways and the southern plains, balanced by acoustic ceiling elements that temper terminal reverberation.

Technical & Engineering Integration

• Aviation MEP Coordination: Seamless integration of baggage handling conveyors with structural floor slabs, ensuring zero disruption to passenger circulation.
• Life Safety & Egress: Wide dual-direction egress arteries engineered to meet strict international civil aviation evacuation benchmarks.
• Material Durability: Industrial-grade porcelain tiling and coated steel cladding designed to resist high-volume luggage wear and tear.

Sustainable Practices Applied

• Deep overhangs and recessed glazing assemblies mitigate direct solar gain during peak Terai summer months.
• High-efficiency LED luminaire systems equipped with daylight harvesting sensors.
• Use of locally sourced aggregate and low-emission finishes to reduce embodied logistical carbon.