One Architecture & Urbanism (ONE)

A design and planning firm specializing in climate adaptation and waterfront infrastructure planning.

One Architecture & Urbanism (ONE) is an award-winning design and planning firm with offices in Amsterdam and New York. Established in 1995, the firm is known for its unique approach in which financial, technical, and organizational issues are addressed and resolved through design.

ONE is a global leader in large-scale climate adaptation and waterfront infrastructure planning. Under the leadership of founding principal Matthijs Bouw, ONE has been instrumental in the development of complex, multi-actor planning processes in the US, Europe, Latin America, and Southeast Asia. In their studios, designers work with engineers, policymakers, and communities to shape joint narratives, develop strategies, and implement projects.

ONE lead the a mangrove replanting project in the Water Window Challenge. Learn more about the project here.

Latest news and articles

Looking ahead with gratitude and shared purpose

Thank you for your support in 2025. We look forward to collaborating with you in 2026.

GRP launches Mobilising Business for Resilience to accelerate private sector action on climate adaptation and resilience

Launched at COP30 with IFC, Mobilising Business for Resilience (MBR) is a new platform helping companies turn climate risk awareness into action.

Meet the winners of the TECH4Resilience Challenge

Eight initiatives using AI-powered solutions to advance climate and disaster preparedness.

WBCSD and GRP announce the winners of the Climate Resilience Awards 

The winning submissions showcase real and cross-cutting solutions alongside COP30 Belem.

“Resilience Science Must-Knows”: Landmark report shows how decision-makers can manage global crises

As the world approaches critical tipping points, a comprehensive global scientific report shows that resilience — the ability to live and develop with change and crises — must now be placed at the heart of global decision-making. The Resilience Science Must-Knows highlights nine insights to connect climate, biodiversity, and development goals, supporting societies to prepare for, respond to, and transform through change and crises.