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OpenArchitectureSustainable Design
International Sustainable Building Competition 2026
UNEP, Global Alliance for Buildings and Construction (GlobalABC), and Türkiye Ministry of Environment, Urbanization and Climate Change — Türkiye
Organized by UNEP, the Global Alliance for Buildings and Construction (GlobalABC), and Türkiye's Ministry of Environment, Urbanization and Climate Change, the International Sustainable Building Competition invites architects and building professionals worldwide to submit built projects and masterplans that demonstrate energy-efficient, low-carbon, and climate-resilient design. The competition is free to enter and is timed to coincide with COP31, the UN Climate Change Conference hosted in Antalya, Türkiye in November 2026, where winning projects will be honored.
Deadline
Oct 15, 2026
Results announced
Nov 20, 2026
Entry fee
Free
Award / prize
No cash prize — winners receive a certificate of honour and international recognition at COP31
Audience
Professionals
Submission format
Online application via yesint.csb.gov.tr with 3–4 project photographs uploaded directly through the site