" The project to expand a recently acquired 1970s house began in July 2010 and was completed in the autumn of 2012. In buying this house in BADEN, the owners wanted to adapt to a new life in the Morbihan by converting an existing dwelling into an energy efficient home using ecological building materials. Close to the sea and an ideal base for sailing, the house was originally intended to be a holiday home. When it became evident that the existing metal framework and concrete panel construction would render energy efficient and windproof renovation in compliance with the 2005 French regulations impossible, it was decided to build a new low-energy consumption house with thermodynamic heating and a 200 litre, 7.8 kW hot water tank for a yearly energy consumption of 47 kWpe/m².../..."