The Green Key is an ecolabel awarded to tourism and leisure establishments which are seriously and controllably busy with environmental care within the company.

The Green Key guarantees the commitment of the entrepreneur who does more for the environment than the regulations require. To qualify for the Green Key, entrepreneurs take additional measures with regard to environmental and social responsibility. These measures are partly compulsory, partly optional.

Green Key The Netherlands has three levels: Bronze, Silver and Gold. The more optional actions an entrepreneur takes, the higher the qualification.

Hotel Sebel Den Haag has been awarded with The Green Key Gold certificate.