BAU 2027 will be held from January 11 to 15, 2027 at Trade Fair Center Messe München in Munich, Germany. It is an international trade fair focused on architecture, building materials, and system solutions. Held every two years, BAU brings together architects, planners, developers, investors, manufacturers, and tradespeople, making it one of Europe's key in-person meeting points for the building industry.

Its official sector structure spans aluminium and steel-work machinery, architectural building materials, building chemistry, floor coverings, roof and facade systems, energy and building technology, smart building, elevators, glass, wood, lighting, doors and windows, security systems, parking solutions, modular and prefabricated construction, digital solutions, and innovation-focused content. This makes the show relevant for both new-build and renovation or modernization projects.

The latest complete public metrics currently available are for the 2025 edition: 2,230 exhibitors, well over 180,000 visitors, 200,000 square metres of exhibition space, and exhibitors from 58 countries. Those figures underline BAU's position as one of the construction sector's most influential global trade fair platforms.