It is a mixed building, offices and home, wood frame in R + 1 fully ventilated naturally and crossing to reduce energy consumption in summer. The air conditioning is reduced at specific times of the austral summer (the hottest hours) and in the context of a necessary acoustic comfort. The rest of the time, the wide openings of the facades and the scoop on the roof supported by the fans, allow to be satisfied with natural ventilation. The fully glazed facades protected by large wooden lamellae provide enough light for office hours while protecting the jalousies from the sun's rays. The low inertia wood construction complete with a projected cellulose wadding insulation and a blanket Ondulit, contributes to the good insulation of the whole. A trellis support climbing creepers (honeysuckle) provides additional shading on the facade oriented at sunset.Le housing is not air-conditioned and also benefits from natural ventilation through and solar protection, on the one hand by a wide overflow roofing, but also by blind shutters in naturally sustainable tropical wood. The ubiquity of wood contributes to a low carbon footprint. The office linoleum flooring complements the presence of natural materials in the ensemble.