High Environmental Quality is a voluntary approach to the environmental quality management of construction developments and building renovation.
It is designed to ensure control over the impact of buildings on the external environment and to create a satisfactory interior environment.

The Novotel Paris Gare-Montparnasse was the first pilot HEQ hotel in France. The HEQ approach has led to certification by an independent office that ensures structures conform to HEQ standards. The hotels in the Parisian region to have received this certification include the Suite Hôtel Issy-les-Moulineaux, which will be completed in 2011; the Mandarin Oriental, a new luxury establishment also planned for 2011; and the St. Christopher's Inn youth hostel that has also been awarded HEQ certification for its site, part of renovation of the Magasins généraux on the Bassin de la Villette.