Bouygues Construction subsidiary Losinger Marazzi breathed new life into an old industrial site in Basel, Switzerland, to create the Erlenmatt eco-neighbourhood. Designed to encourage greater social diversity, the Erlenmatt property complex comprises nearly 600 housing units, offices, and a senior community composed of 63 residences, 56 care units and one restaurant. The Erlenmatt neighbourhood relies on district heating and photovoltaic panels to provide 100% renewable energy for its power needs. It is well connected to the public transportation system and limits car traffic in favour of soft mobility. This eco-neighbourhood is the first 2,000-Watt certified site in Switzerland, a distinction reserved for projects designed and operated for sustainable use.