One Hotel, Mayfair, is a luxury hotel located on Berkeley Street in central London. It is eco-conscious and considered an urban oasis. Known for its biophilic design, the property features a striking living facade containing over 1,300 plants. It features more than 180 nature-inspired rooms, a spa, and a Michelin-star restaurant. In line with their carbon reduction and net zero goals, One Hotel was keen to explore OH4 as a potential solution.