Green Key

Green Key is an international environmental certification for the hospitality sector, administered in Ireland by An Taisce (The National Trust for Ireland). It is one of the most recognised and rigorous sustainability certifications in the world, operating in over 65 countries.

A property displaying Green Key has passed an independent assessment covering more than 100 criteria and maintains that standard through annual re-assessment.

What the assessment covers

• Energy management and efficiency
• Water consumption and conservation
• Waste handling and recycling
• Chemical and hazardous substance management
• Landscape and biodiversity management
• Environmental education for staff and guests
• Food and beverage sourcing practices

Why Green Key matters

Green Key is endorsed by the World Tourism Organization (UNWTO) and the United Nations Environment Programme (UNEP). It is not a self-assessment badge. It requires documented evidence and independent verification by An Taisce in Ireland.