
9 hotels in Wales hold Green Key certification. Each one is audited by an outside body, on a schedule it does not set itself.
Wikimedia Commonsvoco St David's Cardiffvoco St David's Cardiff is a modern hotel located in Cardiff Bay, Wales, United Kingdom. Characterized by its distinctive architecture and waterfront Independently certified
Wikimedia CommonsThe Esplanade LlandudnoThe Esplanade Llandudno is an accommodation establishment located on the Glan Y Mor Parade in Llandudno, Wales, United Kingdom. Situated along the towIndependently certified
Wikimedia CommonsWild Pheasant Hotel and SpaCountry hotel and spa in North Wales with gardens and countryside views. A restful base for slow hikes.Independently certified
Wikimedia CommonsRossett Hall HotelAn upscale hotel set in a historic manor house near Wrexham and Chester. It offers elegant accommodations and function spaces within private landscapeIndependently certifiedGreen Key audits a hotel against roughly 100 criteria, some mandatory and some scored, covering water and energy use, waste separation, cleaning chemicals, food sourcing and staff training. A hotel applies, documents each criterion, and is then visited on site. Certification runs for one year, so a hotel keeps it only by re-submitting evidence and passing another visit. It is the largest scheme in this catalogue and the one you will meet most often across Europe.
Green Key measures management practice, not carbon. A large hotel with a pool and air conditioning can hold the certificate while using far more energy per guest than an uncertified guesthouse down the road — it is being judged on whether it manages its resources deliberately, not on the size of its footprint. The scoring is also weighted towards documentation, so a hotel with good records can outscore one that quietly does better.