About Exhibition Big3 Architect Interior Expo 2026 will be held from 25th - 28th June 2026 at Chennai Trade Center in Chennai, India. This is the premier convergence for the architecture, design, and construction sectors. It serves as a vital bridge between material innovators and the creative visionaries shaping tomorrow’s built environments. Attendees can explore a curated marketplace of premium brands, engage in expert-led technical sessions, and witness exclusive product launches. It is a strategic platform designed to foster professional networking, brand visibility, and the discovery of build-ready solutions.