FIRST IDF PASSIVE HOUSEWOODEN HOUSE WITH POSITIVE ENERGYBEST PERFORMANCE IN FRANCEAim: Creation in Ile-de-France of the very first house to receive the prestigious European « Passivhaus » label.Principle: An successful insertion on site thanks to its double sides, closed to the north to limit heat loss and opened to the South to benefit from free solar energy. Aesthetically, it is a sculptural and abstract replica of a traditional house.Descriptive: An second skin with an open work design in untreated bamboo envelopes the frame in solid wood panels. This cladding, whichbecomes grey over time, drew inspiration from traditional barns in this part of the Ile-de-France region. It passes in front of the windows to the northand finishes by unfolding on to the roof. Identical shutters are fitted on large bay windows to the south to provide shade and light in the house,during the day or at night. Photovoltaic panels on the roof round off the program, producing 2695 kwh/yr in energy. The foundation slab is the onlyconcrete element, the entire structure is created from the assembly these very large solid wood panels, which are prefabricated in the workshop.● Net Floor Area: 177 m² ● Budget: 0,28 M€ ● Phase: Completed in August 2009 ● MO: Private ● Mission: Complete ● Team: KARAWITZ withSolares Bauen (heating), DI Eisenhauer et Philippe Buchet (structure) ● Location site : Bessancourt (95)